Ok... So I had this friend from high school and that is all he was.... & all he would ever be...?

He linked to me on MySpace. Then his stepdaughters linked to me.. He is married and confided in me that he thought his wife was cheating on him.. I requested his wife to add me so that she would not think that there was any funny business. Every now and then he and I would chat. Nothing major, I did not/do not want a relationship with him. He would confide in me and tell me things about her. Next thing you know, he is no longer my myspace friend, but she still is. She also still has the man that she supposedly cheated with linked to her. She keeps posting these bulletins with these little snide comments in them. I know she is directing them at me, why I do not know. What should I do?