How to get over "the one that got away"?

I had a dream last night about a guy I was with once. It's only been a few months, but this is the third dream I've had of him. I really miss him, and he comes to mind occasionally. I was hoping I'd get over him fast, but it doesn't seem to be improving much.

Other than hard drugs or copious amounts of alcohol, how do I get over him?
How to get over "the one that got away"?
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