Hi-
My ex BF & I, (he ended things 2 1/2 years ago plus, which broke my heart

) are hanging out, watching TV, etc. **TRIGGER WARNING** His wife, whom he was on again, off again for the last 22 years, (we met when they were legally separated, and he had moved out, but told me they were divorced

) killed herself. He claims he went back to her for monetary reasons and their son. He is NOT mourning her, and feels it would have been a murder suicide if the son was not in the house.
Anyway, I like a certain part of him, but always in the back of my mind, I think he is deceiving me about anything and everything. He lies about such unimportant things, and I catch him. T thinks I should use him as an "experiment"

, on how to relate to people, get out in public, and use my skills from T. I do get her point. Her advice, if he contridicts himself on a statement, ask him in a pleasant, non threatening tone "I thought you said blank was blank?". She also thought if we started dating, we should have an open phone policy as they phone calls & teexts were issues in the past...him lying to me, not vice versa.
Well, I was alone in his house and could not resist...I looked at his email. I opened very few. I am extremely ashamed of my actions and know it is not the right thing to do. Poor decision on my part.
I just do not trust him. ANy suggestions??
Thanks.