I think Rachel attitudes are immature; but it is different of being deliberately mean. On the other hand, some people are just mean and evil just for the pleasure of being it. Jerky face (shelly) just has a bad character, period. I think we all have our preferences based on who we 'click' with. For me, I also tend to think about which person I'd see myself hanging out with, and for sure I would not want be friends with someone like Mrs. Jerky face.