My boyfriend and I have been living together with his best friend for a few months now. After a couple months he started getting angry when his best friend and I would converse or be in the living room together alone. BF has even said he doesn’t like that when he’s at work, the fact that me and his best friend are alone in the house together bothers him. He has trust issues from being cheated on in his past which I completely understand and respect so I have been trying to work through them with him. But he has also mentioned he might not want to improve them and would rather continue on with having them. Therefore, I’ve been trying to work with his boundaries whether he decides to work on improving them or not because I do love him. Although, this particular instance is very bothersome to me because I don’t feel like I can be comfortable in my space. His best friend has even vocalized to him similarly that it’s completely awkward and something along the lines of it being uncomfortable when it’s just the two of us in the house now since I can’t associate with him or have to leave whenever he enters the same room with me for a long period of time. He started rarely coming out of his room when I’m here because of it. I’ve spoken to my BF about why I don’t like this set up but he is stern on this.
Edit: We have been together 3 years