If you really like him and want a relationship with him..don’t make yourself needy. That will only turn him off.  So, no contact till he comes back to you. There are plenty of fish in the ocean, but If you just can’t picture yourself with anybody else right now..then you got to make sure you grab his attention without coming off as needy..maybe find a male friend and flirt in front of him..if he is really into you, a little jealousy will for sure get him thinking, but be ready to move on if he is not into you.

This way at least you would feel satisfaction that you tried and failed vs. not doing anything and just giving him space and drooling on him to come back..

Good luck!