Do you think he is seeing her when he is in Vegas? I think if she broke it off for her H she will not let things happen. Especially since she knows that you know. If she keeps sniffing around him, then she is putting her M at risk.
I feel for you and understand how you feel.
Keep the faith.
LIT
There are 3 sides to every situation: yours, mine and the truth. Knowing the difference is the key.
