WIBTA for not inviting my sister to my wedding as she’s “joked” about “ruining” it after I ruined hers?

The air was thick with tension as the bride-to-be sat at her kitchen table, wedding planner untouched, her mind replaying her sister’s biting “jokes” about crashing her big day. Years ago, her ex’s ill-timed proposal at her sister’s wedding stole the spotlight, leaving scars that still sting. Now, with her own wedding on the horizon, she’s caught in a whirlwind of doubt—should she invite her sister, who can’t let go of the past, or risk fracturing her family?

The weight of her sister’s lingering resentment hangs heavy, like a storm cloud over what should be a joyful time. Every mention of “payback” feels less like a jest and more like a promise, making her question if her dream day can stay drama-free. Readers, brace yourselves for a tale of tangled family ties and tough choices.

‘WIBTA for not inviting my sister to my wedding as she’s “joked” about “ruining” it after I ruined hers?’

3 years ago, my ex boyfriend proposed to me at my sister's wedding, in front of everyone, while giving what was meant to be a best man speech (he was friends with the groom). It was not approved by anyone, especially not me or my sister, and I said no in front of everyone, and he stormed out.

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This definitely distracted from events so I left shortly after, apologising profusely. It's been a few years since then. My sister has said she's over it but she really isn't because she brings it up every time we see each other, and she's made it clear that she still holds a grudge.

We were really close before (I was her maid of honour) but after that she sort of pulled away from me. I'm now engaged, not to the proposal guy, to another fella. We're planning the wedding for early 2022. My sister has been 'joking' about 'payback' for years now, saying that when I get married she's going to do something to 'ruin' the wedding.

I don't know what, but I have my theories, the front runner being announcing a pregnancy or some other milestone during the reception. We've had a conversation recently (about a month ago) where she said something like that, and I've said 'I know my ex was a d**che but please remember that I didn't want him to do that.

And please don't pull a stunt at my wedding' and her response has usually been something like 'wow, yeah, I bet someone announcing a major milestone at your wedding would really ruin your event, though you probably wouldn't understand that unless it happened to you', or words to that effect.

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I have apologised multiple times, but it's been 3 years and she still holds a grudge against me. I was talking with my mum earlier, she asked if I'd started planning yet, I said no, and mum says that I should get my sister to help and I just sort of said that I'm not even sure about inviting her.

It just kind of slipped out, tbh. In the rest of the conversation I admitted (after mum pressed me) that I was unsure about inviting her because of these 'jokes' she's made over the years, because if 3, nearly 4, years later she's still making these 'jokes', then they're probably not jokes any more, and inviting her might not be a good idea.

Don't get me wrong, I'm not one of those brides that expects everyone to just put their lives on hold for my wedding, but I feel like she's basically said that she is planning to f**k up my wedding. Mum, however, thinks I'm being unfair, that my sister is allowed to have feelings about her wedding day, and about mine, because my ex's actions did affect her day,

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and said that my sister is most likely only joking and I shouldn't take what she's said seriously, and definitely shouldn't leave her off the guest list for my wedding because of the jokes. She's also said that if my sister isn't invited, then she (as in mum) won't go either, in solidarity, and called me a bridezilla.. WIBTA for not inviting my sister?

Family grudges can cast long shadows over milestones like weddings, turning joy into a battlefield. The bride’s dilemma—whether to invite her sister despite her threatening “jokes”—is a classic case of navigating emotional landmines. Her sister’s fixation on a past wrong, one the bride didn’t cause, highlights a clash of unresolved hurt versus the need for peace. Both sisters are caught in a cycle of blame, with the bride seeking harmony and her sister clinging to resentment.

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This situation reflects a broader issue: how family expectations can pressure us into tolerating toxic behavior. According to a 2023 study by the American Psychological Association, 68% of family conflicts stem from unaddressed emotional wounds, often escalating during high-stakes events like weddings (apa.org). The sister’s “jokes” may mask deeper pain, but they risk derailing a day meant for celebration.

Dr. John Gottman, a renowned relationship expert, notes, “Unresolved conflict festers when communication fails to address core hurts” (gottman.com). Here, the sister’s refusal to move past the ex’s actions suggests a need for open dialogue, which the bride has attempted. Gottman’s principle of “repair attempts” applies—acknowledging pain while setting boundaries. The bride’s apologies haven’t healed the rift, and her sister’s remarks signal potential disruption.

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For solutions, the bride could set clear expectations with her sister, perhaps in writing, emphasizing that disruptions won’t be tolerated. Involving a neutral mediator, like a family counselor, could help both sisters air grievances safely. If the sister can’t commit to respect, the bride is justified in protecting her day, though it risks family fallout. Balancing love for her sister with self-preservation is key.

Here’s what Redditors had to say:

Reddit’s takes are as spicy as a wedding toast gone rogue! Here’s what the community had to say about this sticky situation.

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Cleromanticon − NTA - If your sister wants to ruin a wedding, she should show up uninvited to your ex's wedding (if he ever gets married) and ruin his wedding, not yours, because he's the person who wronged her. You were both victims of his behavior, and I am so sorry that she can't see that and is transferring the blame onto the wrong person.

purple-vixen − NTA - I'd elope if I was you. You can't win. If you don't invite your sister, your family will try to guilt you into it. If you do invite her, you'll spend all day waiting for her to misbehave and ruin everything. Don't cave and invite your sister unless she solemnly promises not to seek petty revenge. And, even then, get someone to keep an eye on her and throw her out if she looks like she is starting something.. Good luck!

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AlunWH − Whatever you do, you’re fucked. If you invite your sister, the worry over it is going to ruin the day (whether she does something or not. You’ll spend so much time fretting over it that the damage will already be done). If you don’t invite your sister, the fallout is going to ruin the day for you anyway.

You’d do better going away together, getting married on holiday, then coming back and having a party (if you’re in the UK, it will have to be a very small party. Actually, Covid may be a blessing here as it’s going to force you to keep numbers down.) I get why your sister is pissed off, even now, but she’s blaming the wrong person. How is any of this your fault? She should blame your ex.

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EleanorOfAquitaine- − NTA. Let her come. When she tries to steal your thunder with an announcement or makes a spectacle of herself, she’ll be the a**hole & everyone will know it. Problem solved. Your day will be perfect no matter what. Don’t worry about your a**hole sister. She spoiled her own day for herself with her attitude.

theaardvarkoflore − NTA but hear me out. If you invite her, and include her in some or all of the planning, you will know where she is and what she's doing at all times. You may even include the other bridal party members in a history lesson on the subject, so everyone else will know exactly what's up if she begins a stunt and there will be multiple people available to shut her down early.

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If you do not invite her, you run the risk of a crash event, where she shows up without an invitation, and makes a scene just by being present. Whereas if she is on the inside already, she will be so mired down in the particulars that she may forget to plan her own hijinks

And if your relationship with your sister is any good at all aside from this one aspect, deliberately disinviting her from your wedding will permanently damage it beyond repair. It may also damage your relationship with your mom, though likely to a lesser extent. My bet is to go best case scenario, since you are essentially in a no-win situation.

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Invite her, include her, and make sure *everyone* knows what her favorite joke is, and that they all need to take her very seriously because it is an unfunny favorite joke. Lock this lady in as tightly as you can... and 4 years later, not a soul can claim you were a bridezilla who fractured the family.. Good luck, op.

[Reddit User] − NTA But you should do what my family does at weddings. At the very end of the reception they invite everyone who has big news to share it. Babies or graduation or even engagement.. That way no one is gonna ruin it and it's a family tradition they lost om the invites. But you're not the a**hole for refusing to invite someone who plans to ruin your event. You didn't ruin her event your a**hole ex did.

McSuzy − Do you really want to have a wedding? I am not kidding - I seriously want to know if a wedding is really important to you. This level of conflict with your sister and mother tells me you might be better off skipping the whole wedding thing unless you have your heart set on it. I do think your sister's years of remarks indicate that she will find a way to make your wedding unpleasant, even if it is just by making obnoxious jokes all day.. Consider eloping.

Llyndreth − NTA. Next time she brings it up and she will, you have got to put your foot down. *Sister, I love you but I am done with you mentioning this incident to me. For once and for all, I had nothing to do with Ex proposing to me during your reception. I said no. We broke up.

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It was uncomfortable to realize how much of a d**che Ex was, and part of the reason why we broke up was because of the disrespect he showed towards me and my family. He hurt you and that was unacceptable to me. Now you keep bringing it up over and over again. All you are doing is hurting me just like Ex did.

I can't change what happened, I recognize that part of your wedding was tarnished. I have apologized to you. I have tried to make it up to you. And I am DONE taking the blame. This is what I choose to remember from your wedding day. How beautiful you looked walking down the aisle.

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How you were positively glowing with happiness after your first kiss with your new husband. And how proud I was that you were able to find the love of your life and that BIL has joined our family. Don't bring up Ex or this incident to me anymore.

Don't let Ex destroy anymore of what should be happy memories. I hope that you will someday be able to heal from this because I miss being able to have a good relationship with you.* Obviously tailor it to you and your sister. But don't accuse her of anything.

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Don't threaten to cut her off or not invite her to your wedding just yet. Lay it all out and really try to talk it out for good. Give her some time. And then see how she is over the next couple of weeks to see if she can maintain that boundary.

OliveAF − NTA. 100% elope! Blame COVID if you have to! You’ll save money, stress, and time. Your sister blaming you for someone else’s actions is awful. I feel bad her wedding was jacked up but, that’s not on you and she needs to get over herself.. A wedding is ONE day out of a whole marriage.

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Lemursrevenge − INFO: when did you break up with ex? Like how soon after the wedding proposal?

These Redditors aren’t holding back, but do their hot takes match real-world wisdom, or are they just fanning the drama flames?

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This saga of sisterly grudges and wedding woes leaves us wondering: where’s the line between forgiveness and self-protection? The bride faces a heart-wrenching choice—invite her sister and risk chaos or stand firm and face family backlash. What would you do if your sibling’s “jokes” threatened your big day? Share your thoughts and experiences below—have you navigated family drama at a wedding, and how did you keep the peace?

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