I have been in what I believed to be a good marriage for 18 years. I recently discovered my husband has been watching porn and apparently this has been happening for months. To be honest, I think the real issue for me here is it was something he was doing behind my back. We have always been very honest with each other and pretty open about our sex life. To be honest we have never had any issues there. At least that is what I thought. Now I am questioning everything. I feel betrayed. Maybe I shouldn't but I do. My head knows this is not actually an affair but it feels very personal to me. Am I just being over sensitive?