I started seeing my ex again we broke up after a year and a half of living together. We had several small problems that ended up with us spliting up. I moved out and had no contact. After four days of me leaving my ex began calling me, telling me he was still in love and appolagizing. After two weeks of being separated we talked and agreed to try dating again, and fixing all of our problems. We agread to be honest and I told him that I almost had sex during the time we split up but I couldn't, he confesed he slept with one of his friends in our house and that he did it more then once. It turns out that he did this at the same time he was calling me and telling me he loved me. If we are starting over how and should I let this go. Why is it bothering me so much