Boyfriends e-mail ...?

My ex-husb and I gt bk together aftr 4 yrs of not seeing or talking to one anther. Came clean about ech othrs contact with other pple and it was decided tht he wld cancel myspace acc't.(it was ual content) I didn't have an acc't I just ended my relatnshps with othr men. With that out of the way, we are having a grt relationship! 6 mos later we were having a conversation, asking ech other if anyone has still been having contact with us and he mentioned that the mysp gal was still emailing him. I asked him the context of the emails and he said just hi how you doing etc. But I guess I was not comfortable with the way he acted and spke. I asked if I could see emails to see how they spke and he was not comfortable with that. Then for another reason I became intoxicated and while he was at wrk I checked his emails. I didn't like what I read and I have been sick and depressed ever since. Although there was no dirty talk it was clear that they still are still talking. What do I do??????