Most Helpful Guy
You can't. That's the simple honest answer.
So long as you keep wanting him to want you, you've not let him go, you're not getting over him, and you will still be miserable.
There's a reason why people tell you that living well is the best revenge.
Most Helpful Girl
He has to like you for that.. If he liked you, he wouldn't of gone. Just move on and find one that does.