Well I don.t think that to end friendship is the right option for any one. I'm not in favor to "END FRIENDSHIP" at any cost.
Friends are one that we make by our wish but to end it in between is not the rite option. I would prefer that both of the friends should sit face to face and sort out the matter. Sharing my personal experience I have done the same thing and sort out the matter by sitting face to face that why there is so much difference now days.
In friendship there should be no ego and no attitude.
"If you really want to end friendship then simply avoid him/her by giving less response to what he /she said but don't hurt him/her so much that would result in some negative result."
pooja0908 never ever say this thing to your friend that "you are not able to be anyones friend" because the person is not good to you but for some other person he/she is someone life....!!