A lot of the time I find myself annoyed with my friends. One in particular has a very negative, sardonic personality and it can really bring me down. It didn't use to be this way but now I feel like all our exchanges are one sided sarcasm and taunting about the things I like or talk about, she has also started clinging to another one of our friends and is only nice to her now. We're a decent sized group and sometimes it irks me so much that I want to vent to my other friends, but I don't want to seem childish and two-faced? Am I a bad friend?