Splitting bills and responsibilities is the unspoken contract of roommates everywhere.

So when one woman’s roommate let her boyfriend treat the place like his own personal crash pad, it created an imbalance one renter could no longer ignore.

You’ll want to read on for this one.

AITA (30F) for telling my roommate’s boyfriend he can’t basically live with us rent‑free?

I’m 30F and share an apartment with my roommate (29F). When we signed the lease, it was just the two of us, splitting everything evenly.

But lately things have changed.

Over the past few months, her boyfriend has been here constantly. He sleeps over 5–6 nights a week, eats our groceries, showers here, and even leaves his laundry in our machine.

He doesn’t pay for rent, utilities, or food.

So she finally tries to put her foot down, but it doesn’t go well.

I finally told my roommate that if he’s going to be here basically full-time, he needs to start contributing financially, or at least buy groceries and help with utilities.

She got defensive and said, “He’s my guest, you can’t charge him to exist here.”

However, she’s determined to stand her ground.

I told her I didn’t sign up to live with two people, and it’s not fair that I’m subsidizing her relationship.

Now she’s upset and telling our friends I’m being controlling and unreasonable.

So… AITA for putting my foot down?

She only wanted a fair living arrangement.

What did Reddit think?

Her roommate’s boyfriend outgrew the “guest” label a long time ago.

It’s not only inconsiderate — it may also be against the rules.

The landlord would probably want to know about this unwanted guest of hers.

This commenter really spells out what she should do next.

She thought speaking up would bring fairness back into the apartment, but instead it sparked a wave of resentment.

Somehow she ended up paying the price for their selfishness.

If you thought that was an interesting story, check out what happened when a family gave their in-laws a free place to stay in exchange for babysitting, but things changed when they don’t hold up their end of the bargain.