Roommate Wants Bigger Room: AITA for Refusing to Split Rent Unequally?

A 27-year-old woman thought moving in with her roommate would be a clean, boring win: equal rent, equal split, no drama. Then her roommate started talking about “fairness” and suddenly the whole apartment situation turned into a negotiation war over square footage.

They snagged a two-bedroom place and agreed to split everything evenly, even after six months of smoothly doing it the same way. But now the roommate wants the bigger bedroom, the one that is 30 percent larger and comes with an ensuite bathroom, and she wants OP to pay extra for the smaller room. It gets messier fast when the roommate threatens to move out if OP refuses.

Now OP has to decide if she’s being unreasonable, or if her roommate is trying to rewrite the deal after they already signed up for equality.

Original Post

I (27F) live with my roommate (25F). We found a great two-bedroom apartment and decided to split the rent evenly.

However, my roommate now wants the larger room with an ensuite bathroom, which is 30% bigger than the other room. They claim it's fair since they need more space.

I argued that we originally agreed to split everything equally, including rent. Now, they want me to pay extra for the smaller room, and it's causing tension.

They even threatened to move out if I don't agree. Am I the one being unreasonable here or should they stick to our original agreement?

For background, we've been living together for six months and have split everything down the middle without issues until now. I feel like adjusting the rent based on room size sets a bad precedent and could lead to more disagreements in the future.

I'm also concerned about finding a new roommate if they do move out, given the current rental market. The larger room is nicer, but we both agreed to an equal split from the start.

AITA for standing my ground on the rent split despite my roommate wanting the bigger room?

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This tension is similar to the roommate who demanded an unequal rent split after insisting the larger room was the fairest deal.

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That’s when the “we split it down the middle” routine gets ripped apart, because the roommate is suddenly counting bathroom perks and square footage instead of sticking to the original agreement.

After six months of zero issues, the demand for a 30 percent bigger room feels like a brand-new rule being dropped mid-lease.

The tension spikes even harder when the roommate threatens to move out, turning a rent discussion into a pressure tactic.

And with the rental market looking rough, OP’s real fear is that saying yes now could lead to even more “adjustments” later, starting this exact precedent.

What would you do in this situation? Share your opinion in the comments.

If her roommate wants the bigger room so badly, she might be the one who should find a new apartment.

For a similar “bigger room” standoff, see what happened when a roommate said my room was bigger.