Divide and conquer
Still not successful? Your problem could, in fact, be her chums. Possibly, they’ve spent too much time supporting her choices and sharing her taste and not enough time improving her. Gently drive a wedge between her and those weirdo “friends” she hangs around with. You could try subtly mocking them, discussing all the reasons why they’re actually kind of lame, or spend time together with your own infinitely superior friends, who’re far more sympathetic to your girlfriend-improvement aims.
For handy reference, here are a few things you may wish to improve about your girlfriend in order to achieve a happy, healthy, sexy, fulfilling relationship. Check them off as you go!
Good luck gay ladies!