Why are some guys mean to pretty girls?

Anonymous
Why is it that some guys ignore pretty girls sometimes? Why don't they just talk to them and see if they are nice? It seems like some guys even act like jerks around them. Everyone one says I'm very pretty for some reason, but I don't let it get to my head...I have smarts and goals too. but this happens all the time to me with guys and I'm not trying to be conceited because there are so many other nice pretty girls that this happens to too. and they are NICE girls...i'm not talking about the mean pretty ones. For example one time we were asked to get into groups in my one class in college and this one guy talked to everyone else in the group girls and guys but not me. So when I went around to ask everyone's name in the group he didn't even look at me and mumbled his name in moody way. then he started talking to every single person around him in a nice way. I acted like everyone else in the group so I'm not sure why he would act that way towards me. It kinda hurts that I'm not treated with respect but other people are. why do guys do this?
Why are some guys mean to pretty girls?
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