I don't know if you still care about him? If I were you and were in love with this man, I'd try to help him anyway I could. I'd work in therapy (myself) to learn how to help keep the communication lines open and the honesty flowing. I'd try to learn ways to help him feel safe and comfortable/happy with me. I'd work to be secure in myself, so I could allow this grown man to communicate with anyone he wished, male or female and not feel like he had to lie about it (or feel like he had to tell me every detail like a little boy). My husband immediately told his ex-wife when he started seeing me. I'm quite sure, from this and other behavior of my husband's that I've observed in the last 25+ years I've known him, that I won't have to "discover" there's a problem in our marriage, we'll be discussing it right as it happens.