I think that you know what you need to do...stop talikng to this man completely. Once you do that, start talking to your H about what he can do to make you feel the same attention that you feel from this OM. Have you considered going to counseling? Maybe developing some hobbies? I would also suggest gonig on a Marriage Encounter Weekend. That is a wonderful experience as helping to reconnect and creat imtimacy in a marriage.

Good luck to you:)