Unfortunately, we don't have a "stop" or "pause" button for feelings like we do for movies, lol.
Why do you think he doesn't like you? How long do you know him? Ask some of his friends if he told them about you or if he fancies someone.
Ignoring could help, but if he doesn't know why, the friendship might be ruined. Imagine a friend of you suddenly ignoring you and you don't know why. You'd be worried and a bit angry (well, I would be).
You could just fess up and tell him how you feel and see how it goes. If he says no, just go on with your other subjects to talk about.
Or you could ask him out on a date? If he says no, you know the deal.
He might not even know you fancy him, he might fancy you back! You never know if you don't take the leap. He might feel the same way.
I don't think ignoring is gonna help your friendship. So I wouldn't recommend it.