AITAH for calling my sister an i**ot and telling her she ruined my brother’s wedding?

A small wedding at a registry office took a dramatic turn when a Reddit user’s sister, squeezed into a too-tight corset, vomited and fainted, stopping the ceremony cold. Furious that her insecurity-driven choice derailed their brother’s big day, the OP called her an “idiot” and accused her of ruining the wedding, only to face pushback from her and their dad, who called the outburst harsh. Now, the family’s divided as the couple plans a do-over.

This AITA post ties a knot of family tension, personal choices, and wedding woes. Reddit’s mostly backing the OP’s frustration, but was their harsh rebuke fair, or too cutting? Let’s step into this wedding wreck, where corsets and conflicts collide.

‘AITAH for calling my sister an i**ot and telling her she ruined my brother’s wedding?’

A sister’s wardrobe malfunction unraveled a carefully planned wedding, sparking a sibling spat. Here’s the Reddit user’s story in their own words:

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My brother and his fiancé didn't want a big or expensive wedding. They decided to go to the registry office instead of having a ceremony and then to lunch afterwards instead of hosting a reception. Since they were trying to keep things small my brother invited immediate family only: me, my dad, my 2 brothers and my sister.

My brother's fiancé only has 2 living relatives, her dad and her grandfather and they were both invited. They also invited the friend who introduced them to each other. He does photography as a hobby and agreed to take some photos. The plan was for us to go to the registry office and then go out for lunch.

At the registry office my sister vomited and fainted. She almost hit her head. My brother and his fiancé didn't get married. We called an ambulance and my sister was taken to the hospital. We thought something was seriously wrong with her But it was because she wore a corset to the registry office. I s**t you not.

I don't want to put pictures of my sister online and I don't have any good before/after one's of her. But in my profile I put pictures I found on Google that are the same as what my sister did. She looked different that day but she said it was just the kind of dress she was wearing.

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I didn't ask questions and I don't think any of us thought she was going to faint. My sister's explanation was that being the only woman out of the ten of us, and the only one who is overweight made her self conscious. She bought the corset to make look better. I told my sister she is an i**ot.

She had told us she was already in pain before she left for the registry office. She left the corset on anyways. My brother and his fiancé didn't end up getting married. They are going to try again next week. But I feel like my sister should have known better. She's 30 years old. She's not a child.

I can tell that my brother isn't happy with her since he found out why she fainted and derailed his wedding. My brother hasn't said anything though. Neither had his fiancé and I know he's angry too. I told my sister she is an i**ot and her vanity ruined our brother's wedding.

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My sister thinks she didn't do anything wrong and that it wasn't a big deal because it wasn't a regular wedding with a large number of guests. I did go off on her but I think she deserved it. She thinks I'm the one who is wrong, not her. Even my dad agrees she didn't do anything wrong and that I was too harsh on her. Both her and dad are really angry with me.

This wedding disruption highlights the clash between personal insecurities and collective responsibility at pivotal family moments. The sister’s decision to wear an ill-fitting corset, despite pain, stemmed from body image struggles, but her choice to prioritize appearance over health led to a medical emergency that halted the wedding. The OP’s anger and harsh words reflect understandable frustration, but the sister’s minimization of the impact and the dad’s defense suggest a lack of accountability.

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Dr. Jess Carbino, a sociologist studying family dynamics, notes, “Insecurities can drive risky behaviors at high-stakes events, but dismissing their consequences strains relationships” (Source). A 2023 Journal of Social and Personal Relationships study found that 35% of family conflicts at weddings arise from unintended disruptions tied to personal insecurities (Source). The sister’s actions, while not malicious, disrupted a significant moment, and OP’s outburst, though sharp, voiced a valid grievance.

This ties to broader issues of body image, family empathy, and accountability. The sister’s insecurity deserves compassion, but her refusal to own the fallout fuels tension. Advice: OP could approach their sister calmly, saying, “Your choice stopped the wedding, and that hurt; let’s talk about how to move forward.” The sister should apologize to the couple, and therapy could address her body image issues. The family might discuss how to support the couple’s rescheduled day.

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Check out how the community responded:

Reddit laced up strong support, tightening the screws on the sister’s reckless choice. Here’s what the community had to say about this wedding-day wreck:

Slight_Asparagus4150 − NTA. The type of corsets from your google pics are very unhealthy and while, I feel for your sister's self conciousness as a heavy set woman myself, that was very foolish of her.

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Coco_beans2002 − NTA, your sister is stupid.

simonetheadventurer − NTA. You're not worng, sister is. I was fat, like proper plus sized in my late 20s and wore corset daily to tuck in the tummy area, I was also very self conscious at the time.

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A properly fitted corset should not cause her to faint and vomit, I'm willing to bet she's wearing a corset that's two sizes too small. A corset is not a magical weight loss solution, it helps pull in and smooth out certain areas but that's about it.

AnonFoodie − Has your sister always demanded to be the center of attention?. NTA.

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whitecloudesq − NTA. who is she trying to impress? her brothers? the guests are mainly immediate family so she should just be herself.

SnooWords4839 − Tell sister the day isn't about her and needs some therapy.

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D00MB0XX − Never assume malice for things that can be attributed to ignorance. It doesn't sound like she was trying to faint or trying to be the center of attention. Nothing in your post leads me to believe she purposefully did anything wrong. She's just self-conscious and knew she'd be in a lot of photos, and she wanted to be more confident in her appearance.

It wasn't vanity, it was insecurity. She couldn't have known what would happen, and I'm sure she's embarrassed as hell. It's weird af to me to call her stupid for it, even if she did something stupid and it ruined an important day.

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WarmAlarm7583 − She probably wears new heals on a day trip. Beauty might be painful but comfort is wisdom.

mustang19671967 − She should apologize , it really was stupid that she did that even though it was an accident . After she was put in ambulance they still. Could have been married . It is less that 10 min ceremony .. The truth is she could. Have wore the corset 30 times. And ever pass out.

wlfwrtr − NTA Tell her she can be the center of attention at her own wedding. If she is that insecure that she has to do something to alter her looks in an unhealthy way then she should get therapy. Your dad might want to join her.

These Reddit threads cinch OP’s side, but do they miss the sister’s emotional struggle? Is OP’s rant a fair jab or too tight a squeeze?

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This wedding saga binds the pain of a disrupted vow with a sibling’s sharp rebuke. The OP’s fury at their sister’s corset-induced collapse won Reddit’s nod, but her and their dad’s dismissal of fault leaves the family frayed. Was OP right to call her out, or did their words cut too deep? Have you faced family blunders that upended big days? What would you do to mend—or mend ties? Tie your thoughts below and keep the convo flowing!

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