That should be
fk_yeah
That should be
fk_yeah
“… and shit”
Super Kapowzler
What I’ve learned, because you’ve provided absolutely no concrete details upon which to comment, is that you hate her because you hate her. She’s a bitch because she’s a bitch.
So my advice is going to be just as specific. Stop dealing with her. Tada.
Look, OP, you’ve been around her your entire life, but we haven’t. We have no idea if you’re telling us the truth or not. Right now, we only know that you hate her because she said something mean to your girlfriend and she refused to help your mother with a phone bill. That doesn’t exactly invoke images of hell-spawn to me.
In other words, what else ya got?
Seconded!
So far, we’ve only heard one side of this, YOUR side. :dubious:
Here’s an idea. Why don’t you get her to join the SDMB, too! :eek:
We’ll get to hear both sides, and then we might be able to offer some insight and advice. 
IMHO…That, probably ain’t gonna happen! :rolleyes:
That’s a too easy and too simple, solution! 
What a wonderful idea!  What this place really needs is two angsty teenagers airing their endless dirty laundry and sniping at each other!
Actually, they’d fit right in.
The bear shits in the woods.
That remains my all-time favourite South Park episode. Kills me every time.
Why, she couldn’t think of an answer?
I think the OP suffers from middle child syndrome. “Marcia Marcia Marcia!”
C’mon, if you’re going to pit a family member, at least provide some juicy stories - you’ve lived with her for (I’m going to guess your age based on your post) 15 years, you must have something beyond a vague attitude problem and showing you up in front of your girlfriend.
Where are the screaming fits about how her dance classes are more important than anything else in the world? Where are the opening of presents meant for you for no discernible reason? Where are the tantrums that are initiated by a single aspect of a plan not working out? Where are the constant screwing up of golden opportunities anybody in their right mind would give their right arm to get?
Not that I’m, you know, projecting or anything.