So, my girlfriend and I were only together for a couple of months. I fell in love with her and things moved pretty quickly. She decided that she wanted to break up with me because she didn't feel that she was ready for the kind of relationship that developed with us. After about a month of being broken up, during which time we were still sleeping together (once or twice a week), we got back together. We have been back together now for about two months. I am totally in love with her and she's in love with me. She talks about how she is so happy that she came to her "senses" and realized that we were in love and are a good match. When we got back together I had asked her if she had slept with anyone during our split and she said that she didn't. I didn't sleep with anyone because I was in love with her and was hoping we'd get back together. Now, weeks later, it turns out that she had lied to me and did in fact sleep with a guy on one occasion a couple of weeks into our breakup. I love this girl with all my heart and I do know that she loves me too. How do I get beyond feeling upset about this situation and move forward? Because we both want to be together. Am I being stupid here or can a relationship work in this type of situation?