So I had been with this one guy since December. We lost our virginities to each other. We really were doing great. But then I just started losing interest after I found out he lied to me about some really big issues. I've been trying to break up with him for about a month now and he just wouldn't let me. He's very controlling. Now today it's finally officially done. We are broken up, but he wants to know why. How do I explain this? I lost most of my feelings for him, I can't picture marrying him at all and I started to like someone else. What should I say for my reason why? It's so hard to know. I want to be as kind as possible because he is a decent guy, we're just not meant to be.