Wow, first time you've seen him since July?? That's crazy considering the two of you live in the same general area. Hopefully it didn't send you spinning all over again, sounds like you handled it well enough.
I am spinning and I think I know what's wrong. I'm a single parent as I have been since he left but now one of my kids doesn't live with me. He treats D14 like a pet. He brings her fast food before going back out again. She now wants to move in with me but it's going to take a few months to work that out so for now I pick her up after work and I take her home before bed. This puts me at WAH's house twice a day now. He's rarely home which is why I never see him.