How will you behave when your best friend cheats you?

I think I will cope with this distinctively according to my friend's original idea. If he thought for me, I will thank for him,if not maybe I will hate him.

Since I am prepared for any incident in life, even if my best friend cheats on me I would not be shocked or would react violently as to why he/she has behaved in such a manner. Life is complex and we need to understand the nature of this complexity.

It depends how. For example, I couldn't care less if she cheats in some game, such as cards. In fact, I would tell her straight to her face and we would both burst out laughing. But then, our game would be destroyed :P If she cheated in some other very serious way, and on purpose, I would probably just stop hanging around and never do anything in her favor again until I hear an apology straight to my face, not via internet.