My fiancé David is friends with a guy Sean. Sean became very distant and mean to him. He never cared about what David had to say nor felt empathy for him at all. He would always be like “but what about me?? I’m miserable”.

He constantly blew up at David and David acted like he could fix Sean and didn’t want to leave because he promised to always be there for him.

David is really kind and sometimes it feels like it’s killing me since I would probably not stay. I love David so much and I worry for him, but I can’t control him not do I wanna.

He said he doesn’t wanna always talk to David and that he’s tired of him. How can I help?

Sean is also REALLY nice to me. Did the friendship already crash and burn or is there hope or what??