How long ago did you break up?

It most likely will take some time for the strong feeling you are feeling right now to dull itself. Count on the fact that it will. I suggest that you should try to occupy yourself with activities, talk to friends about fun, interesting things, or just get outside. Also, you should spend some time searching this site and responding to some posts with some words of support. Helping others is an action that can take our own minds of our own pain, even if it is just for a short time. Fresh air in itself can wipe away a lot of pain.

Pain is what you are feeling and pain is always most prominent directly after suffering the wound. Then the pain dulls with time. As you may never forget you ex, the pain will subside. It is a fact.