It's kind of a long story.

Me and my friends were planning to get a shared flat together after high school ended. One of said friends ended up asking someone else(m), if he wanted to join the flat. The guy agreed. Said friend didn't ask for permission to ask and I chickened out about voicing my discomfort about that(I was against him in the flat).

Fast forward to me not wanting to be in the flat anymore, chickening out about saying that, getting severe depression(not just because of the flat thing) and general mental problems. Friends start pressuring me for the apartment search, I end up getting along but not going to the sighting. My sister is also in the friend group aka the flat which is going to become revelant later. Because I was the only one who worked aka wasn't supported by her parents, I asked for the smallest room, my sister would be sharing with someone and I would pay her rent for the first months till she got a job too.


Fast forward to them getting the flat, me and my sister taking longer to move in because of family issues. I go to visit the flat and discover that my room is 7m2 "big", and with a layout that makes even putting a bed into it dubious. Thing is, I still pay 250€ for a room that can barely fit my bed and a few clothes at most. Friends pay about 300-350 for 15-17m2 rooms. 

I snap and just decide fuck it, tell them I'm out and then hash out the details with them, that is still paying part of the rent (which I'm okay with, because I'm the one who pulled out and need to take responsibility and they all have their money limit already pretty stretched). Of course I tell them the reason why, with the "I don't want the guy in the flat" thing out. My sister still hasn't moved in because she kept procrastrinating till something important in her school came up that made her unable to move. I still pay her rent of 350 plus the added 150. Sister keeps procrastrinating till deciding that she's not going to move in, and doesn't bother getting a job and basically just fucks with me (a whole other story). So basically my friends are kind of disappointed, I made it pretty clear to them I'm not going to move in, it's been several months of me paying 500 for literally nothing. I decide fuck it, at least I want to get something out of the money and decide that I'm just going to move in despite severe discomfort. 

Then the guy finds a couple who would move in, I discard my "plan". A few days later they find out that won't move in, so basically the "room"(aka living room), would be free again. I decide, once again, fuck it, and this time say I would move in. The guy responds with visible bad mood and asks me why I haven't said that earlier, I tell him why. He said that I would have to either share a room with someone or use the little room.


AITA for changing my mind about moving in? Also AITA for being kinda frustrated that I wouldn't get to move in the "room"/living room despite paying almost double of everyone else?