i have a friend who has problems socially. She can say really rude things but doesn't seem to notice it and has really, really bad mood swings. When she's upset, she never seems to know why or doesn't want to say. She can be really depressing to be around sometimes and it doesn't help me. She never seems to try with new people and she never really contributes much unless she's in a happy mood. I don't think she's bipolar because she's not that extreme in terms of happines and sadness but there's definately something there. Any suggestions of what disoder may friend may have? Will be great help, thanks.