Feelings can be ignored because it's a choice. You can choose what to feel. But ignoring feelings are like an itch you want to scratch, a thread that is visibly hanging loose that you want to pull or the urge to sneeze.* *Feelings can be ignored, but they will always come to bother you. You can ignore feelings, but you can't deny that you are feeling them.
You can't deny that you have feelings for the boy who keeps ignoring you or the girl who keeps saying 'no' to you. Ignore them all you want :)