Sorry to hear of your sitch, but I have to say that it is healthy and a good sign that he is watching you that closely and so scared of losing you. The less said the better. I agree, he is drawn to someone else. He is trying to justify his actions, and looking for this in you. He thinks that he is a normal, great guy, and if he is drawn to this kind of R, then everyone must be. His mind is in the gutter. Let him go there all by himself. Do not defend yourself. He needs to feel the loss of you, or the potential loss of you. One word of caution, do not go looking to make him jelous, that will backfire big time. If he manufactures it himself, then that is on him.
Bomb 1/06 D dismissed 11/07, attempt reconciliation. Premature. Divorce final October 31, 2008. OW looks like bad history. Over. Still hopeful. Baby steps. In R with my X.