Sounds like every shitty chick flick out there. Girl wants or is with jerkoff asshole that treats her like shit but she can't wait to spend her fairytale life with him. Best friend happens to be a poor schmuck that wants to get in her pants, but all he can do is whine and dream because he made the ultimate idiot mistake and fell in the friend zone. Insert plot twist, and boom....she realizes "oh my best friend is the man of my dreams. Why couldn't I have seen he was right in front of me?"
That's all bullshit, because before the poor girl would ever come to her senses, the poor schmuck would be busy banging her sister and her closest girl friend. At the same time if he can.
Come on Hollywood, be original.