Is AUTHOR wrong in the post ? POST : Disclaimer : My english might be a bit chaotic.

Context : We're students and both living in really small rooms with a single bed each, one minute from each other. We're back from a one-week holiday week from her parents' home where we slept in a king size bed.

I had a terrible night where I slept only 1h and a half, followed by another uncomfortable night making me feel heavy in the morning. So I asked her to let me recover for a night where I could sleep way better, and I did.

But now, she's calling me an egoist and pretending I'm rejecting her only because I don't like spending time with her.

It sounds ridiculous, but I'm actually tired of these kind of arguments between us and I want to know if AITA or if she's overreacting? 