What happens next?

How to ignore your feelings for someone that doesn't feel the same
Allow yourself to feel upset.
While you may be tempted to push your feelings down and pretend they don't exist, this is only a temporary solution. Feelings don't just " go away " if you ignore them--they come out in other, usually destructive ways.

Pick your answer from:
(A). Give yourself the time and space to express your sadness. Cry, punch a pillow, sit in your car and scream if you think it will release some of the negativity.
(B). Your feelings are okay--you have nothing to upset them about, no matter how much they might hurt or react. Talking to someone about how you feel will help keep your internal clock ticking.
(C). Putting away your emotions can help take your mind off of your feelings because it will ultimately help you re-focus your attention and start working through your grief. As you work through your emotions, they become less powerful and eventually cease to be worth the effort.
(D). By looking for ways to deal with them, you can even counteract them without having to draw them out. Don't allow yourself to feel overwhelmed.
(A).