Long story short....... A couple of days ago I made out one of my sister's friends, and apparently she had a boyfriend. I honestly didn't know and she was dropping hints the entire day. Then, the next day she said that she caught her boyfriend cheating on her??? She posted some stuff on facebook about karma. I'm really at a loss here. I feel like I ruined their relationship. Do you guys think its my fault?? I feel really horrible now. I know this has nothing to do with games, but I want some clarification.