Is NOBODY wrong in the post ? POST : I live with 3 other girls and recently my boyfriend has moved into my room with me. We’ve always split the rent 4 ways and I personally think it should still be that way because it should be per room not per person, but the girls are now saying that we should pay more...

I said we’d split the bills 5 ways obviously because he’s using electricity/water/internet etc too, but I don’t think we should have to pay more when we’re sharing a room. I’m really annoyed they suggested this. 

AITA for thinking we shouldn’t have to pay more? 