Cheating

Look for some girl advice. My husband of two years broke the news to me that for the past month he has been in a emotional relationship with another girl over the phone and that over the last two week, they have become, in his works, “explicit”. No pictures or videos, but sexting and phone sex. I don’t want to leave him, I want to save or marriage, because I do know he is very sorry. But I’m not sure how to work towards forgiving him. And I just don’t know how I can have sex with him again because all I can think about is her. Please help, and don’t let your response be to leave him. Because for me that’s not an option, my goal is to work towards mending our relationship and I need some girl help to do that.