Oh, that was a great movie. But clearly, you have not seen it as you should. Yes the official romance was horrible, but that's because it's a coverup. Everybody knows the true romance in that story was the love triangle between Beca/Chloe/Aubrey, which should be resolved in an OT3. See here: http://archiveofourown.org/users/cdybedahl/pseuds/cdybedahl/works?fandom_id=588513
Although, really, just browse through AO3, I'm pretty sure the majority of works are Beca/Chloe.