...If you really want to move on:
- block him on social media
- change his name to "YDB - You Deserve Better" so that's what you see when you're tempted to call or text or getting calls/texts from him.
- and do not contact him or respond to him for 30 days.

^ This really works.
And after the 30 days - if you still want to get him back...
I can tell you how, just message me.