Fastest way to get over someone ? 😞

Babes
It's not that deep 
We weren't married or anything but I'm hurt when I think about him.
Basically I hooked up with my friend it looked like we always were kinda into each other, we always had great chemistry before. but since we did it, he really doesn't give a fuck about me and never talked to me again. 
How can I stop thinking about him at all and not be hurt anymore ? 
We have several mutual friends also.