Is AUTHOR wrong in the post ? POST : I (female) am from the east coast and went to the west coast for a few days for interviews. I told my close friend (let’s call him M for Male), to come visit, as he has free business class flights due to a buddy pass. 
We agreed to stay together when he came and split the cost. I tried to book a place to stay a few days ahead of time, but M wasn’t sure when or if he could come. I ended up staying at another friend’s apartment during my trip. M arrives around noon on Sunday, and knows I am leaving Monday morning. He also has some work to do during this time. He wants to look at hotels when he arrives, but I kind of just wanted to stay at my friends apartment since the prices were very high since it was last minute.
We end up going to a museum, and I got extremely high to the point I was throwing up. I go back to my friends apartment, since I wasn’t feeling well and didn’t want to stay in a hotel with someone else high. He books a $400 a night hotel and kept complaining that he didn’t have a good trip (because we didn’t have much time, didn’t really do much fun things bc I was high) and that I should pay him for half the hotel bill.

The first few times he mentioned it, I just kind of ignored it. He mentioned it again a month later, so I end up sending him the $200+ for half of the hotel.

We are very close friends and both make good money but I don’t think the principle of what he did was right. I don’t know if we should continue to be friends. AITA in this situation?