My friend's a bitch (or something like that)

Dear Edahn,

I know this girl whom every time I meet, though not often, kind of leaves a bad taste subsequently. She recently entered a relationship but when she's not around her boyfriend, she feels a need to degrade her other girlfriends so much so that one gets the impression that she considers her other 'friends' worthless and in her own words a 'punching bag'. From what I can tell, maybe this is related to the fact that prior to meeting her recent boyfriend, she was very unhappy (though she had the same attitude towards her other friend) and she directed all her frustrations towards her. All I know for certain is that she has a lot of growing up to do and needs to learn to cope with her own inadequacies.

Ummm. Okay. Is there a question here? She sounds like a bitch. :-P