How much is too much . . .

I consider myself a good person. I work and study hard. I am responsible and reliable. I am a loyal friend and daughter. We all consider ourselves good people, or at least we try to. We give people second chances, and sometimes third and fourths too. What we don't realize in the present moment that some doors need to be closed forever. Sure, we always value our friendships, work relationships, and romantic relationships, but sometimes you have to wonder if you've given people too many chances. You can only give so much love, time, and consideration to people who may not give it back. Of course we don't mind giving ourselves for our friends, but when do you come to a point when you're all used up?