Is OTHER wrong in the post ? POST : My sister (28F) and I (27F) are going to a family wedding this summer. Since the wedding isn't in the city I live in, I booked a room for the night before the wedding in the nice hotel where most of our friends and family are also staying. My sister did not as she actually lives in the city where the wedding is taking place.

My sister has now asked to share my hotel room with me, which I said was fine as long as we split the bill. She disagreed however, and claimed I should still foot the entire bill myself since I was already planning on staying there anyway. She also made a point that I earn more money than her and can easily afford the hotel room myself, while she can't afford the room or even half of it. I stood my ground and said she would still need to pay her share, to which she said I was being a bitch.

AITA for expecting the bill to be split 50/50 despite our different financial situations?