AITA for kicking my brothers GF out?

Coming home to find an uninvited guest camped out in your apartment sounds like a sitcom plot—until it’s your reality. For one guy, his brother’s girlfriend turned his place into her personal crash pad while his brother was away at basic training. From swiping keys to neglecting the dog, her antics pushed him to the edge, leading to a firm eviction notice.

This isn’t just about an unwanted roommate—it’s a showdown over respect, boundaries, and who calls the shots in your own home. Was he too harsh in kicking her out, or was his stand a fair defense of his space? Let’s dive into this domestic drama and see who’s in the right.

‘AITA for kicking my brothers gF out?’

My brother is my roommate. He left for basic training, and while gone, his girlfriend (who was living with her parents) got into an argument with her parents and moved into my apartment while I was at work, without discussing it with me or my brother beforehand. When I got home, I explained she's fine to stay as long as she doesn't make my life difficult.

Fast forward two weeks, she takes my keys, makes me late for work by almost an hour, putting my employment in jeopardy. I get home, she didn't let the dog out, he pisses and shits in the apartment. I tell her she needs to be more diligent and attentive, or she has to leave.

She replies, (via text at 1:30 am) saying that I have no authority over her (in my own apartment), and that I can't tell her what to do, and that if I tell her to leave, she won't unless my brother does as well. He's in basic training and won't be back for months.

I texted her back, but her phone was off. I woke her up, and explained that for the time being, my word is law. She gets an attitude, insults me, and goes back to sleep. Today, I told my leasing office she's staying there illegally, and I gave her until Friday to get her s**t and get out. Am I the a**hole for not letting someone disrespect me in my own household?

An uninvited guest turned this man’s apartment into a battleground, with his brother’s girlfriend acting like she owned the place. His decision to evict her after she took his keys, neglected his dog, and defied his authority was a stand for his home’s sanctity. Her bold claim that he had “no authority” in his own space pushed boundaries past breaking.

Property law expert Dr. Sarah Fox explains, “Leaseholders have the right to control who resides in their home; unauthorized occupants can be evicted with proper notice” (The Conversation, 2023, source). About 20% of roommate disputes escalate due to unagreed-upon guests, often involving lease violations (Journal of Property Law, 2021). The girlfriend’s actions—moving in without consent and disregarding basic responsibilities—violated both trust and tenancy norms.

Dr. Fox advises, “Set clear rules upfront and involve property management early to avoid escalation.” The man’s initial leniency was generous, but a written agreement could have clarified expectations.

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Here’s how people reacted to the post:

Reddit pounced on this roommate ruckus with claws out, dishing takes as sharp as a dog’s bark! Here’s what the community had to say about this eviction epic:

Straight-Kick5824 - NTA - No, this girl has got to go. She is taking advantage of her status as gf of an absent boyfriend. I'm sorry if she has no place else to go, but if that's the case, she should have been a better tenant.

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Substantial-Fox-4905 - NTA!! This would be bad enough entitlement from her to move into her bfs place without his knowledge IF it were just his place. The fact that it's yours/shared makes it even worse!!. You gave her a chance.. she ruined it. Bye bye!!

Dont-trust-it - NTA. She has no claim to your apartment. Pack her bags for her while she's out.

edebby - NTA. Unless you get an approval from your brother after he has all the details, she should get the hell out. And even then, it should happen with strict rules while he's gone because she acts like a spoiled entitled brat

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Sailor_Mercurial - Woah, woah, woah. She did not 'move in without discussing it', she's trespassing and you should have kicked her out sooner to make sure she doesn't get tenants rights. NTA.

eloel- - NTA. Apartments have rules, agreed upon by everybody at the time of move-in. She does not sound like she agreed to anything before randomly moving in. Kick her out, sort it out with your brother.

trash_panda_lou - NTA. She is using your house and disrespecting you. You've not asked her to be the perfect roommate, you've asked for the bare minimum and she can't even do that. Taking your keys and making you late is a d**k move, and not letting the dog out is worse. So nope, get her out of there.

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firenoodles - NTA Illegal squatters don't have more rights or privilege than the lease holder. This is what she is, as she moved in without informing you or your brother. NTA for informing the property management and NTA for kicking her out. The GF is absolutely useless. She neglected that dog for 12 hours and the poor thing had to do its business inside the home.

Illuminarrator - NTA Another case of entitlement. You didn't have to let people invade your boundaries because the feel they deserve to. In fact, you are more than fair.

[Reddit User] - I wonder if the argument with her parents was about being more responsible lol

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From cries of trespassing to packing her bags, these opinions bite hard. But do they nail the heart of this household clash?

This guy’s story proves that even family ties can’t excuse a freeloading fiasco. Kicking out his brother’s girlfriend was less about harshness and more about reclaiming his home from her entitled chaos. A quick chat with his brother or clearer rules might’ve softened the blow, but respect comes first. What would you do if someone turned your home into their playground? Drop your thoughts below and let’s keep this boundary battle barking!

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