I know excactly how you are feeling. My husband and I are on the edge of a divorce. My summer was also terrible. You can cut the tension with a knife in my house. It's been like maneuvering around a giant elephant taking up the entire kitchen. And close friends and family ask...how was ur summer? You doing ok? And inside ur screaming...NO! I'M TERRIBLE. But u politely reply yes and great. It was a fun summer with the kids. It's lonely feeling like your world is falling apart and you cannot share with anyone. It feels like your hiding something, or just putting on an act? Idk..but it's unsettling. The same thing has happened in my house...school started and we fall into routines. But I can't help but feel we didn't solve anything. I think it's just the calm before another storm :-(
One thing I have realized from my summer...it's ok to be NOT ok. I don't have to figure it all out in one day. It will eventually fall into place. Take care of yourself :-)