if your best friend turn into your nightmare what shoul you do ?

The instictual answer would be to get rid of him for good. But, considering you're asking, was your relationship with your girlfriend very good? I mean, was it a one time thing or are they together now. Do you just feel betrayed or are you really heartbroken. Sometime people that belong together wind up together because of someone else. I guess what I'm trying to say is you need to weigh how important each is to you. Do you think he generally felt bad about the situation or was he an ignorant fool who didn't give a crap about you. Things usually are much more complicated than others can see.

he stole your girlfriend?? ouch. Well, if he is your friend and he knows how much you love your girlfriend, then he wouldn't do that all. Its like breaking the rules of friendship.

To me thats not a friend in the slightest...and quite frankly I would tell someone like that exactly what I thought of them and end the so called friendship right away..I dont need ppl like that in my life at all...

well if he did all that, he's not your friend at all. friends dont things like that to each other. i would write him off, but i would be straight up and let him that was wrong for what he did. all we can do is express ourself and its up them to do with it as they want. plus she was wrong too for going with him as well. write them off and move on