I'm a Bad Person

I am utterly bitter RM got an "Honors" on her final memo and I only got a "Credit+." At first I really didn't care, but the more I think about it, the more bitter I get. I've looked at the analysis of my paper, and I get more bitter. In my meeting with my professor, I felt better about what I got. She made me feel OK about. Now I realize it was a load of BS because I could have gotten better. Does that make me a bad person for being so hostile?