My best friend's girlfriend is my ex

What do you do when your girlfriend leaves you to be with your best friend?

Well, this is really a hard question to answer considering that I am in the same position, only my boyfriend left me 4 my best friend. What I am doing is just dealing with it, although it does get awkward at times. Try to make it seem like you are over her, so that she doesn't feel like there is some love triangle going on. That would just make it awkward for you all. And don't let your friend know that you still like her. It is going to be hard for you, but you'll pull through. Besides, if she was shallow enough to leave you for someone so close to you, she doesnt deserve to be with you anyway.