Nah, especially when I don't like them either. Its ok to not like people and not be liked back.

I used to think everyone had to like me. I used to go out of my way to make everyone like me. You know what? That took a LOT of energy and the people who disliked me never really came around to seeing what a great person I am. It probably just bugged them more that I wouldn't let them just dislike me in peace.