GG, You know your sitch better than anyone. Only you can decide what is right to do and what may do harm. Just remember that he has hid much of his "other" life from you (the dating site, viagra, etc.)and by omitting what he is up to it is still a lie, a lie of omission. Also remember that OW is now no longer in the picture and his change may have something to do with that and he is also actively looking for replacement OW that wants an outdoorsy, well read, sex loving guy a lot younger than he says he is.
As for the attitude change towards other people... my W has started to mirror the way her father acts when around him. My D's have noticed it and say when she is around him and his wife she becomes creepy just like he is! He is a put down other people type person. He has even told her that when something happens the first thing you need to do is establish who is to blame! I thought it was a joke but he was dead serious! I guess for a guy who has caused so much crap to others all his life he has gotten good at the blame game! Total 180 for my W. She would defend a person who cut her off in traffic saying maybe they were lost or something. Now, it's time to blame someone else 24/7 (and it's usually me!). She was even trash talking about her female boss with her work friend the last time she was over with her! She would have NEVER done that in the past. Who knows, maybe they feel so bad about who they have become they feel the need to cut others down, think that it will make them look better?
