AITA for refusing to help my sister out when I’m the only person in our family she lives close to and she has children?

In a quiet town where family ties are tested by old wounds, a woman stands firm against her sister’s plea for help. A decade ago, her sister’s affair with her then-fiancé shattered her trust, leaving scars that time hasn’t healed. Now, living just 20 minutes apart, her sister faces eviction and joblessness, and their parents urge her to step in for the sake of her sister’s kids. But the sting of betrayal keeps her resolve as unyielding as stone.

This Reddit story, raw and heartfelt, unveils the struggle of balancing family duty with personal pain. Shared on the AITA forum, the woman’s refusal to help paints a vivid picture of a past betrayal that still looms large. Her tale resonates with anyone who’s grappled with forgiveness when the hurt runs deep, pulling readers into a moral tug-of-war between compassion and self-preservation.

‘AITA for refusing to help my sister out when I’m the only person in our family she lives close to and she has children?’

I (31f) have not spoken to my sister in 10 years after she had an affair with my ex. I was with my ex from the age of 15 until we were 20. My sister was 19 at the time and the affair had been ongoing. Most likely they started the affair not that long after my sister turned 18. My ex was the same age as me.

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My ex proposed to me while we were together, my sister was 'helping' with that and encouraging me to marry him before he proposed. This was so he would be around and they could keep sleeping together. We got engaged and a few months later my sister told me I couldn't marry him because she was pregnant with his child.

She tried to salvage a relationship with me and asked me to understand and not be mad at her. I told her she was disgusting and I would never forgive her. I also told our parents what she had done. I saw my sister once after her first child was born, a year or so after I had learned about the affair. She told me she missed me and she wanted her daughter to know her aunt.

She tried her best to get me to at least agree to a relationship with her daughter but I told her it was not possible and I was still not going to forgive her and I told her not to talk to me again. My parents and extended family also stopped talking to her when she started dating him for real and they only resumed contact after they broke up.

They then supported her because of the kids. My parents couldn't bring themselves to turn their backs on their grandkids or to sever the relationship forever. I was fine with it because I do understand. But her having kids was not an incentive for me to repair things.. I'm now happily married and a mom myself.

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A few weeks ago my parents called and told me that my sister has been living 20 minutes from me for the last two years. They know I don't want to talk about her so until this point they had not. She moved out of state for a job and then she lost the job and her landlord had told her she needed to be out in 60 days because he was repurposing the house.

Without her original job and with no support network here she had turned to them. She didn't want to pull her kids away from the place they were used to now and so my parents decided I should be the one to help. They told me if I could help her by putting her in touch with people for a job and maybe another rental it would be so amazing.

They wanted me to step in before the 60 days was up. I refused to help and told them I will never do a single thing for her again. They pleaded with me to reconsider and told me to think of the kids. They asked me if I really hated my sister that much and I said yes.

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I told her it would be bad enough to be the affair partner, but to encourage me to get engaged and help him plan it while they were cheating behind my back was such a low thing to do. I said the fact she stayed long enough to have another child with him also showed how little she really cared about me.. They told me to be a better person than this.. AITA?

This woman’s refusal to help her sister, who betrayed her with a devastating affair, is a powerful stand for self-preservation. The sister’s actions—sleeping with her fiancé, encouraging an engagement to mask the affair, and later having children with him—inflicted deep emotional wounds. The woman’s decade-long estrangement reflects a boundary set to protect her well-being, not a rejection of her sister’s children.

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The issue ties into the broader challenge of navigating family obligations after betrayal. A 2021 study in Journal of Family Issues found that 30% of sibling relationships face significant strain from betrayals, often requiring clear boundaries for healing. Dr. Harriet Lerner, a family therapist, notes, “Forgiveness doesn’t mean erasing boundaries; it’s about choosing what protects your peace” . The woman’s refusal aligns with this, prioritizing her emotional health over family pressure.

The parents’ plea to “be a better person” overlooks the sister’s lack of accountability and the woman’s right to set limits. Their focus on the sister’s children, while understandable, places an unfair burden on the woman, who has her own family to nurture. The sister’s choice to stay in the area, despite lacking a support network, further underscores her responsibility for her current predicament, not the woman’s.

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To move forward, the woman could maintain her boundary while suggesting alternative support for her sister, like community resources or parental aid, to ease her parents’ concerns without compromising her stance. A letter to her parents, clarifying that her refusal stems from self-care, not malice, might foster understanding. This approach upholds her integrity while encouraging her family to respect her limits, preserving her peace and their connection.

Let’s dive into the reactions from Reddit:

Reddit users stood firmly with the woman, calling her parents’ request unreasonable and manipulative. They argue that the sister’s betrayal—having an affair with her fiancé and building a family with him—justifies the woman’s refusal to help. The consensus sees the parents’ push to involve her, citing the sister’s kids, as an unfair guilt tactic, ignoring the depth of the original wound.

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The community also emphasizes that the sister, as an adult, bears responsibility for her situation. Users suggest the parents, not the woman, should step in if they’re so concerned, as they’ve chosen to maintain contact with her sister. These takes highlight a shared view: the woman’s boundary is a valid response to betrayal, not a failure of compassion.

friendlily - NTA. Your parents are fine to resume their relationship with their daughter separate from you. But they are completely out of line in demanding you do anything. And then trying to shame you when you do not comply is disgusting.

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They're the ones that need to be better people.. No contact is no contact. It doesn't mean no contact until I need to use you and your resources.. Hard pass. The person most obligated to help the kids is their father and the people obligated to help her, if any, are her parents.

catskilkid - NTA This is a blazing KARMA post. You do as you wish, but your sister figuratively and literally made her bed. This is NOT your issue and in fact your sister IS the reason there is an issue. She herself has decided NOT to move because of the kids.

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So her becoming a burden on you again is ONLY because of the kids (including the one she had while cheating with your fiancé). You do you, but that is a BITTER PILL you are being asked to swallow.

yrnkween - Please hire my sister. Is she trustworthy ? Well, she had an affair with my then-fiancé. Is she a hard worker? I don’t know, I haven’t talked to her since she had an affair with my former fiancé.. Please rent to my sister. Is she able to afford a lease? I don’t know, she’s currently unemployed.. You’re NTA. She’s a real piece of work.

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[Reddit User] - NTA “Explain to me, please, why my sister is allowed to sleep with my partner, scheme to keep the affair going for YEARS, have his child, have ANOTHER child by him, and all the while show NO remorse,

yet you are lecturing ME to be a better person? How dare you. You want to help her so badly? Do it yourselves. I do not want to hear another word about this, or it will be the last word you say to me for a good long while.”

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Beneficial_Mix_8803 - NTA, dear god… I hate when s**tty people try to weaponize their children. My mother would use us for stuff like that, and all of the “help” she got just benefited her. Your parents can deal with it. She’s their child, not yours.

extinct_diplodocus - NTA.. They told me to be a better person than this. That's amazingly ironic. They're giving that advice to the wrong sister and way too late. You already are the better person.

SpaceJesusIsHere - NTA. They told me to be a better person than this. This is where I would have texted, 'It's clear you don't understand what my boundaries are, so I'm going to block your phone numbers.

When you're ready to apologize and agree not to bring that woman up in conversation again, you can send me an email and we can resume a relationship. Until then, I wish you both the best and I'll be saving my mental and emotional energy to take care of my children.'

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BefuddledPolydactyls - Without her original job and with no support network here...she didn't want to pull her kids away from the place they were used to...so my parents decided I should be the one to help. NTA. No. Being voluntold to help someone who betrayed you so radically is ridiculous.

All she got out of it was two kids, and all you got was pain. If she's an adult and has lived in the area for 2 years, she can navigate for herself and 'should' have friends that can also help. She's familiar with the area, had a job and can find another, had a rental and can find another. Or...your parents can step into the position that they want you to.

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seregil42 - NTA. This is the consequence of your sister's actions. Maybe your parents should uproot their lives and buy a house big enough for them and your sister, if they are so concerned about uprooting the kids. My guess is that they don't want to be 'better people' either, though.

DisneyBuckeye - NTA - your sister is finding out AGAIN that there are consequences to her actions. I agree 100% with you about her staying with him long enough to have another baby, she obviously didn't see anything wrong with what she did. I'd let your parents know that they are welcome to help her, but to stop bringing this up or you may have to scale back your relationship with them as well.

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This woman’s story, a raw blend of pain and principle, underscores the challenge of holding boundaries against family pressure. Her refusal to help her sister invites reflection on balancing forgiveness with self-protection. Share your thoughts—how do you navigate family expectations when past betrayals still sting?

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