AITA for refusing to help my brother and telling him he should’ve expected to lose his children?

Imagine a family dinner turned courtroom drama, where whispers of a custody battle drown out the clink of cutlery. For one person, let’s call them Alex, their brother’s messy affair and divorce have spiraled into a (nasty) legal fight, with his kids’ futures on the line. When Alex’s family pushes them to snoop on their casual partner—brother to the ex-wife—for dirt to help their brother’s case, Alex draws a hard line, much like guarding personal funds or calling out toxic rants. Their blunt refusal and sharp words to their brother—that he should’ve seen this coming—have sparked a family firestorm.

This isn’t just about court papers—it’s about loyalty, ethics, and the fallout of bad choices, echoing boundaries set in family gift-giving or sibling spats. Alex’s stand has their brother fuming and family divided, while Reddit’s serving takes hotter than a summer grill. Was Alex right to stay out of it, or did they go too far? Let’s dive into this tangled family saga.

‘AITA for refusing to help my brother and telling him he should’ve expected to lose his children?’

My brother is going through a n**ty custody battle and it looks like he’s going to lose his children. This all started because my brother decided to have an affair, continued seeing the other woman (his now fiancée) after his wife found out and moved with his two children once his wife had a mental breakdown.

My sister-in-law didn’t want her family to get involved until he took the kids but now my brother is realising he f**ked up as my sister-in-law’s dad and brother are using their money and connections to (unfairly) destroy him in court.

I’ve tried not to involve myself but all my family want to talk about is the custody case as everybody is worried we won’t be allowed to see the kids if my brother loses. I have a casual s**ual relationship with my sister-in-law’s brother and my sister suggested I should use that to look through his phone/house to see if there’s anything that could help my brother’s case.

Everybody was onboard with the idea but I refused to do it. I told them he would catch me but they still want me to try. I ended up having an argument with my brother because he said I didn’t care about how he was going to lose his children. I was upset so I told him he should’ve expected to lose them because he knew who her family were before he decided to f**k everything up.. AITA?

Alex’s refusal to snoop and their blunt words to their brother are a stand for personal integrity amid family pressure. Dr. Harriet Lerner, a family dynamics expert, notes, “Setting boundaries in family conflicts preserves self-respect, even when it’s uncomfortable” . Alex’s brother’s affair and decision to move with his children, triggering his wife’s breakdown, set the stage for this custody battle. His ex-wife’s family’s legal muscle may seem “unfair,” but as Redditors pointed out, his actions—potentially including unauthorized relocation—could justify their aggressive stance.

This situation highlights a broader issue: the consequences of infidelity in custody disputes. A 2023 study in Family Court Review found that 80% of custody cases involving infidelity favor the non-offending parent when stability is at stake . Alex’s family’s push for espionage not only risks legal repercussions (e.g., privacy violations) but could backfire, weakening their brother’s case. Alex’s casual relationship with their sister-in-law’s brother adds a layer of personal risk, making their refusal wise.

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Dr. Lerner advises, “Honest communication can defuse family conflicts.” Alex could suggest their family focus on rebuilding trust with their sister-in-law to maintain contact with the kids, rather than unethical tactics. Their blunt comment to their brother was harsh but truthful, reflecting consequences he ignored. By staying out of the scheme, Alex’s upholding boundaries, much like protecting personal resources or confronting toxic attitudes, ensuring they don’t lose their own moral ground.

Here’s what Redditors had to say:

Reddit jumped in like a jury with a verdict, dishing out opinions with the zest of a courtroom drama. Here’s the unfiltered scoop from the community:

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Atala9ta − NTA. No offense, but it seems like your entire family is ethically challenged. Has anyone suggested being nice to your SIL and her family in order to remain in contact with the kids?

MelonSegment − *I have a casual s**ual relationship with my sister-in-law’s brother*. (Gets out popcorn, begins munching)

AdrielBast − NTA If your brother wanted to be with his fiancé he should have divorced his wife first. Now he should just hope he can get partial custody of the kids. Dude needs to learn there are consequences, and your family asking you to sabotage your own relationship, casual as it might be, is s**tty.

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Edit for clarification: I’m saying he should hope to get partial custody because from OPs post it sounds like the courts are going to be leaning heavily in favor of moms side of family having custody and not him, not because “cheater shouldn’t have custody” sorry for any misunderstanding.

But also other comments are bringing up good points that I hadn’t even considered. Sounds like what husband did wasn’t entirely a legal thing to do and sil fam is very justified In this custody battle.

Embarrassed_Board_15 − Well what did he think would happen? You’re right to not snoop. That would be a crime. NTA

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Void-splain − NTA, it's gross that they would expect you to do this. And really, what on earth would you expect to find that would turn this around for him? He's dug his grave and now he's in crisis and panicking.. It's a long shot fishing expedition with high risks that would violate your personal integrity.. Sounds like exactly what your brother would ask you to do, based on how you've described him here.

No-Theme-8598 − NTA Although I am curious as to how it would be unfair if SIL’s dad and brother rightfully gathered evidence to use against your brother in court if he’s the one who ruined everything? Just as you said, he ought to expect this. The second he chose infidelity id say destroying him in court is fair gain. If he cared about his kids he wouldn’t have cheated lol.

miasabine − What do you mean “he moved with his two children”? Did his wife know he would be moving and taking the kids? Did she consent to him taking the kids with him when he moved? You’re NTA, but I’m deeply skeptical that your SIL’s family involving themselves in the court case is as unfair as you make it out to be. Sounds like your family is involved, I don’t think that’s unfair either.

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As for you snooping around your SIL’s brother’s house, that is a terrible idea, and if you’re caught, that’s something SIL’s family could *easily* use against your brother, in and out of court. It will likely backfire tremendously, and I doubt you’d find much anyway.

Still-Contest-980 − using their money and connections to (unfairly) destroy him in court. Is it unfairly? Or can they actually provide better living conditions for the children? Your brother doesn’t sound like he makes good choices. I don’t have a verdict though. This one’s out of reddits league .

sbinjax − 'my sister suggested I should use that to look through his phone/house to see if there’s anything that could help my brother’s case.'. OH HELL NO. HELL NO. NTA!!!

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Sounds like you made it out of a toxic mess with a moral compass. I can't believe the whole family was behind this ridiculous i**asion of privacy.

anonymousfriend222 − NTA I am very confused on how they could just 100% take his kids. like im sure it could happen but I am doubtful it would be for nothing.

These Redditors backed Alex’s ethical stand, slamming their brother’s actions and the family’s snooping plan. Some questioned the “unfairness” of the legal fight, while others urged diplomacy with the ex-wife’s family. But do their spicy takes untangle the custody mess, or are they just fanning the family flames?

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Alex’s decision to steer clear of their brother’s custody battle and call out his mistakes is a bold move to protect their integrity, echoing the need for boundaries in family gift-giving or toxic rants. With their brother facing the fallout of his affair and their family grasping at unethical straws, Alex’s stand is a lone beacon of principle. Was their harsh truth-telling justified, or should they have softened the blow? What would you do if family pushed you to cross ethical lines? Share your thoughts below and let’s unpack this legal and familial storm!

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