Update- he's moving in with my parents for a little while until he gets back on his feet.but he is still closing on the house with his wife, and she's going to live in it with her friend. Idk why he's doing that. It's the stupidest idea ever. Supposedly they are separated and yet he's signing his life away. I just don't get it.

Now my parents think he's using them for a place to stay. It's still really awkward between them and he told them "I won't stay long bc I know how bad things are between us."

Now I'm both worried about my parents and my brother. Idk what to do or if I can do anything but wait and see how it goes when he moves in on Wed.