Definition: Given a real-life anecdote of a complex ethical situation, generate a suitable title that describes the main event/root cause of the situation. Imagine that the given text is a social media post, and you have to write the title of the post, so the users can decide to read the main text or not.
Input: So bf (mid 30s) and me (mid 20s) live together. We have a bedroom, his office (he works from home) and a joint dining/living room where my computer is located.

Bf has a friend who I dont really like hanging out with. He asked me if it was ok if friend came over for a night over and stayed the night. I had some medical problems, so I dont wated to join them, but said it was ok for the two of them to go out.I also made clear that bf should sleep on the couch (I didnt want to have my sleep interrupted) and that as long as friend is there the bedroom is mine to use as I wish (including watching videos etc.).

Long story short they drank a lot and were both not feeling well the next day, vomiting, the whole works. I have no problem with that. At about 3pm bf said that he will go sleep in the bedroom (friend was still occupying our couch). I told him no and that the bedroom was mine. Bf acted annoyed, friend saw it and decided to leave because he didnt want to start an argument. I told friend he could stay until he felt save to drive. He left nevertheless.

Bf then went to bedroom, I stayed in the living room. I heard friend call and heard bf say "yes, this is so stupid" in an annoyed tone. After the call ended, I went into the bedroom and told bf that Im sad he thinks my actions are stupid after I communicated my conditions clearly beforehand. He said he didnt say that and ignored me the rest of the day. I feel shitty now both for annoying bf and for driving friend out. Also I feel like a foreign body in my own home.

Am I the asshole and should have let bf sleep in the bedroom and just stayed quiet?

Tldr: Bf was annoyed when friend stayed over after a night of drinking (that I did not join) that I wanted the bedroom to myself.

reserving the bedroom for me