erhm...you know the whole fb thing is sort of childish but if she has issues with YOU putting up pictures or what not then that's just plain weird. If she is someone who regularly checks her fb then she could at least change her status, it takes a few seconds....sort of strange if she doesn't want people knowing she has a bf. And about the guy situation, that's a definite no no. next time she decides to see him, ask if she minds you coming and if she does, dump her because she is most likely cheating on you.
"Sometimes the best way to throw a punch is to take a step back"~Morgan freeman