I know I've talked about my girl's shyness about sex in general here before, but I have a new issue I'd like to present before you all. A little over six months ago, I had a rather rude surprise with my girl. She and I had gotten into a small spat about some little nothing that I've since forgotten, and though we weren't talking at the exact moment, it was nothing we hadn't dealt with before. To the best of my knowledge we would resolve the problem in an hour or so and be done with it. While my girl and I weren't talking, I decided to go and hang out with a few friends of mine to chill and talk the whole ordeal over. With my friends this day was a guy I didn't really know, but knew his name and face. His name is Lenny, a nice guy who I've since become friends with. Anywho, my friends, Lenny and I sat around playing some video games for two hours or so before we actually got on the subject of the argument. It seemed like nothing special, nothing out of the ordinary, just discussing the whole thing in bits and in general. But when I mentioned my girl's name, Lenny had the strangest look on his face. I didn't pay it any attention at first, but after we discussed it he pulled me aside. "Did you say her name was (my girl's name)?" asked Lenny. "Yeah. Why?" "Umm...eheh...we've been together for about a month now." "..." A few hours later, after both Lenny and I had approached her, both befuddled and outraged at the same time, Lenny stormed out of the room in a fit and still refuses to this day to speak with her. I left too, but not quite in the same kind of huff. I was more confused than angry. I didn't know what I'd done wrong. I had noticed that her behavior had gotten strange over the last month or so, but I would have never attributed it to cheating on me. What confused me more was the fact that I wasn't mad at Lenny. He was just as screwed over as I was. He had no idea that she and I had ever met before. Now, I'm not one to judge, but what she did to me hurt me deeply and I would have never expected something like that from her, but I didn't show my pain or my confusion. I kept it inside and released it to her in little bursts over a long period of deep thought, consideration and eventually forgiveness. My decision to take her back made me happy then and has kept me happy until now. I love her. What brings me here to post this today is that her behavior is becoming all too familiar. I've noticed little things, things that I cast off as nothing special around six months ago when I first met Lenny. I don't want to think the inevitably awful thought, but I just can't tell. There's no -real- sign that anything's wrong. She's just acting...different again. Am I an idiot for giving my girl a second chance? How can I tell if she's faithful to me or if she's sneaking behind my back?