My husband had an emotional affair with his ex-wife in November. She invited him to dinner, alone, with their daughter. I wasnt aware of this until after 11pm when I asked where he was. He had been drinking, and I told him not to come home that night. The next morning, we talked about going to counseling. He went out that night with friends and said his ex-wife wasn't going. I found out in April that she did go. I gave him the chance to get everything out in the open. I found out that he stayed that second night with her. I asked if they slept in the same bed, and he said yes, both nights. His daughter wasn't there the second night. He claims they didn't have sex, but what else should I think?
My answer is going to be super simplistic but I believe this may be what you need. Ask your husband if he wants to stay married to you. If he says yes, then it would be helpful to go to a marriage counselor and work this out with a professional. If he says no, then you can file for divorce.