I’m in my mid-twenties and have been in several long-term relationships, all of which ended badly. Repeatedly I was told by boyfriends that I was a “bad” girlfriend and that this was one of the reasons our relationship ended (this despite the fact that two of them were cheating on me at the time!). Still, I’m starting to wonder if there’s something to this accusation. My close girl friends all tell me that “you’re perfect the way you are” and “if they can’t see it they don’t deserve you,” but of course they’re going to say that; it’s your best friends’ job to love you and tell you you’re wonderful when you’re feeling down. But, still. Maybe there are elements of truth in this. Can anyone give me good advice on how to be a good girlfriend?