How would you take it if your boyfriend's friends disliked you?

Maria
Without even communicating with you much, just disliking you for dislike's sake. For "stealing" their buddy. 
I'm having trouble coping with that currently. My friend says I shouldn't want everybody to like me but this is one of my boyfriend's best friends. He's not just any person. He has the power to influence my boyfriend's perceptions and that's problematic to me.