NyRuinz saidIf you were crushing on a guy and you were in the process of getting to know the guy and getting along well, and suddenly he stopped speaking to you and asked you to not speak to him any longer, would you...
A) Respect his request, and distance yourself from him all together
B) Allow him time to cool off and see what his issue is with you
Definitely (A) here, in my opinion. Less pain and suffering for all persons involved.
As someone who's experienced this situation from the opposite perspective, it's best to leave the guy alone. If he's decided to cut you out of his life completely, he's probably doing you a favour... and although you may feel hurt and confused following his actions, it's likely he's feeling just as awful for doing it in the first place. He could have major issues, and may be trying to protect you from any further harm he might cause you, in his own warped way.
On the other hand, like danisnotstr8 may be alluding to, there's always two sides to the story. Your view on the preceding events may have been totally clouded by the emotions you harbour towards him, and you may have freaked him out. That, or your perception of reality is just totally different to his. Less realistic, perhaps?