<human>: Give me a shortened version of the text

I have been dating this girl I met at a dance (she is from another school, her friend brought her to the dance at my school, which is a relatively small nerdy school) and her friend started dating my friend at the same dance. We have mainly had a side by side relationship with going on lots of group dates together. This is also our first relationship (both me and my girlfriend)

During this time the two females in this situation have compared relationships, and thus mine has been compared to that of my friends and that of my girlfriends friend. As you could imagine, that gets old quickly, especially with how my girlfriends friend acts.

She basically acts stupid and clueless about everything even though she isn't or someone has explained it to her because she thinks that is attractive. She also likes to diss on anything that's not mainstream (ie. me browsing reddit, or even Daft Punk) and this attitude, when she is with my girlfriend, rubs off on her.

Due to all this and the fact that her and my girlfriend are friends, my girlfriend feels an obligation to side with her (4 years of being best friends) despite not actually believing her.
<bot>: My girlfriends friend who acts like a bimbo is dating my friend and compares our relationships repeatedly, screws it up, and makes my girlfriend feel obligated to support her.