Dear Charles: I have found the most amazing man and luckily for me he has been mine for nearly a year now, but thanks to my previous partner (who cheated on me several times.. I stayed because I thought I couldn't do better, silly I know), I'm so insecure and scared that he'll find someone prettier or smarter. He tells me all the time that I'm the best thing that's ever happened to him and he doesn't just say it; he shows it. But still I'm insecure! How can I fix myself? I'm scared I'll lose what I have if I keep acting like this. Please help.