How do I deal with my husbands problem?

Recently I discovered a jump drive that had pics of naked women presumably downloaded from the internet. It also contained a pic of a mutual friend he found on a website. He had been keeping this a secret although I am pretty open to looking at this stuff with him. He started this about 2 months ago right when he started pushing me away and turning me down for . He claims he loves our life and finds me very attractive and that he was pushing me away because he felt unloved. I feel he made this up in his head to rationalize his problem. I have been nothing but loving and he now admits this. He promises that it has not gone any further and I am inclined to believe him but then again I never would have guessed him to do this behind my back either. I am having hard time moving on from this and have been sleeping in the other room because he feels like a stranger to me right now. What do you think?