I would try to stand up for myself, and confront the friend that hurt me.
But as Rey Mysterio said, I would'nt want to take it all out on them.
I would say it in a nice fashion, and tell them that 'you really hurt my feelings. I want to be your friend, andI hope you know that I always will. But, me, I have a sensitive heart. As long as you can see that, I hope that next time it will be in your mind. Please, let's try and renew this friendship. Your a great friend, and we deserve eachother.'