OW doesn't sell used cars by chance, does she? Seems like she let him have a test-drive, then was looking for some earnest money so he'd be committed.
Of course he put up the $$ for his "soul mate" because at that time there were no negatives, and he had no experience with a manipulative-type. Once they are in the house together, he has a much higher hurdle to break up with her.
This is how SHE made sure that he would not have second thoughts or try to reconcile with you.
I'm not trying to excuse his behavior--he's not a good guy, period. But I do think he was a little naive, easy prey for such a conniving woman.
