Question: Should i dump my boyfriend if he is being a jerk to everyone but me ? 

Answer: Probably. Eventually he'll be a jerk to you, too. Why would you want to be with someone who is a jerk to everyone, anyway? Don't you want a social life? Don't you want your friends and family around? He could be a controlling person who wants you all to himself, so he tries to drive everyone else away. I'd avoid him like he was poison... because he is.
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