Hey everybody, I (26F) live with my ex (27M) and my good friend (23F). My ex and I lived together for a little over 2 months before we broke up, and my friend moved in about a month before it happened. it's been 3 weeks since the breakup and has been tough to be stuck in this living situation. I have my own room now across from my friend. My ex and I have been cordial but it's still very raw and I'm struggling, a LOT. We had our future's planned together, and I thought he was the one.
My friend recently has been making me uncomfortable though. She and him have a pretty lowkey friendship that started when she moved in, and I am happy for it, but I guess I hoped she would back off of it a bit when we broke up. Instead it feels like it's still building. I found out yesterday they went out for sushi, because my ex asked her to pay him back for her roll. I told her that made me uncomfortable and she said she was sorry, that she tried to use it to figure out how he was doing and where his mind was. I dropped it at that, but then that same night, my ex was next to me because I was going over a project I was working on for him (paid) - and she came over, asked about what we were doing, and completely leaned on him to see the computer. she just hung out against him for a bit, and I straight up said again "that is making me uncomfortable, can you stop" and they moved away from each other immediately.
I want to have a conversation with her and ask that she not build the friendship any more, because I'm her friend and everything is still super painful. I need my friends and my home to feel safe and it doesn't. I don't want to ask for her and him to be strangers, but just for the one-on-one time to stop and physical contact. It feels inappropriate?
I do think it is all on her side. I've never seen him make any initial contact, and he even commented like it was weird when she leaned onto him.
Am I overreacting or is this inappropriate behavior on her part? I just feel so uncomfortable, hurt and betrayed. I want to believe that she's not trying anything and it's just her being unaware.