Pearl is right. Look at it this way...when you started dating, you said H pursued you and pursued you like crazy, right? Who were you then? How did you carry yourself? Where is that girl?
This is what I think happened....he said he wanted out, you freaked and started pleading with him not to leave. Guess what? They enjoy that, esp. in a relationship that the WA sees as one sided, the LBS having all the power or control if you will for the majority of the relationship....then they say they are leaving and probably expecting a certain amount of "Whatever, go" out of the once dominate spouse. When that doesn't happen, when the once dominate spouse falls apart, it's a rush, a power trip. What makes you think he's going to give that up? And what makes you think he's turned on by it? It's strange...they feel power over you and that's so great because they've never experienced it and they love it, why wouldn't they? But at the same time, it's probably not that much of a turn on for them either. I could be wrong, but I've learned more about human nature over the course of these 9 months of DBing, I would bet money your H is having a power trip right now.
So really hhh, stop his trip short. How would the girl he met handle this? And I really want an answer...how would she handle this?