Mastering the game is not about being able to manipulate one person in specific and get her laid at any cost. It is rather about increasing your chances by having the right attitude and mindset, and one of those is the attitude of abundance. To put it short, just move on to the next girl. That other guy seems to have done a good job and earned what he deserves. If she is in love with him (and for as long as she is) there is no chance for anyone to get her. You can only wait until their relationship starts to crack, and that's a waste of time.

From what it sounds, he's nothing more but a flamboyant facebook dunderhead. She will realize, or already does, that the guy is a complete joke and a waste of energy. Do not give up on her, though do not wait for a miracle, take her out on a casual date and put a end to this.

OP the very best thing you can do is to back-burner this woman and find and date several others. Keep contact with her on a purely friendly level and re-engage if the opportunity arises.

You're too invested in her right now and competing for her through Facebook is childish and lame. Go about your awesome, happy life and show her what she's missing out on.