Intimidation?

Does anyone else get really fucked off when your friends start to comment on how much another friend has lost weight?
All my pals are gay guys, and I'm the only main female AKA "The alpha female" in the group.
There's also 'inside' jokes about my lack of weight/bulimia/anorexia, etc.. They call me "Thumbulimia" because I'm so small and obv make myself sick when I need to to lose weight.
Anyway, that's fine. That's the jokes. I don't mind them.. it's what we do!

So lately this new girl, Cheryl, has came on the scene and started to hang out with us.. She lives closer to the gays than I do, so she naturally sees them more often/parties with them more often.
I feel soooo intimidated, jealous, and almost scared in a way because the boys have started to comment on nights when they're out partying and how fabulous Cheryl looks and how much weight she's lost!

I'll note that I've met Cheryl and she's absolutely lovely, pretty too. She's probably about a UK 12, but since she's started losing weight she's probably nearer a UK 10. I'm still in a safe zone because I'm a UK 6 but I don't look it.. and I've gained sooo much carb weight.
My body has become addicted to the carbs & I'm finding it so hard to restrict right now... especially the fact that Craig & I have had literally NO food in the house apart from bread because we're so poor! (i get paid on thurs, don't worry.. haha).

Back to the subject... okay, we recreationally take drugs. Yeh yeh 'lecture lecture'... whatever. So Cheryl is on a speed diet which is the reason why she's losing so much weight.. there's no plans of her stopping this diet in the near future. This means that her weight will plummet and she'll become skinny & i'll look like the fat one.

If there was ever a reason to lose weight more than this, please let me know. I can't be the fattest in the pictures.. I can't be the fat girl everyone feels sympathy for.

No.... :(