Why is it ok for you to be my friend (or, as the case may very well be, pretend to be my friend) for a number of years and then, when you no longer want/need anything from me, snub me? Who said that was OK? Who told you that was acceptable behavior? You're a grown-up. You should know better. I've met your parents. They did not raise you like this.
I am disappointed. Hurt too, but mostly, disappointed. I expected more from you.