I know how you feel! Don't know what to tell you. And yes I go through the ASSuming thing to. It's hard not to. I've known my H for 25 yrs, M21 it's hard to let the rope drop. No matter how much you detach and no matter how much you DB, you can't stop habits and feelings.
Just know we all have bad days, I've been having a hard time too the last 2 days. My problem is H was coming over more often and now I miss him more than ever. Plus I'm PMSing right now.