Cognitivism says it the best! Plus I need to add something to give you perspective, not to belittle your situation.
You are still physically well and whole. I was seriously injured a few years back by two DOCTORS of all people, not just unfortunate outcome of needed surgery, but surgery that did not need to be done (found out on review), was done WRONG, no follow-up to complications. Lost the use of my colon, rectum, and for 7 months the use of my small intestine. Had to search all over the US for 13 months for a doc to fix me up the best that could humanly be done. The only thing that could be done was repair of my small intestine and permanent ileostomy bag (I excrete waste into a bag out of my small intestine). So far so good, but I physically have no guarantees for the future. I could reobstruct from scar tissue and die tomorrow. BUT, so far so good and it's been 3+ years now. BUT this makes me realize all the healthy, safe, good years I wasted feeling bad about things other people did to me socially like your situation, Though it is natural to feel hurt, do not give this guy any more of your time or attention.
So I am TOTALLY going for it now. I travel all over the world, ballroom dance like there is no tomorrow, and generally party it up. I view people soooooo differently than before. There are LITERALLY pieces of me missing (or no longer able to be used). I am literally not all in one piece.
You, on the other hand, have the most important thing in life......you have YOU! I am presuming you are healthy and WHOLE. This other person who broke your heart is OUTSIDE of you. You are complete without him. He is an "outsider" so to speak. Concerning where you are at, DO NOT give him the power over you to make you feel this way. You will meet another one day. BUT for now, focus on you, your hobbies, true interests, your friends, family, and pets if you have any. Think back to when you were a kid. Do some things that you liked back then. If possible go back and visit some nice places that you may have fond memories of prior to meeting this idiot. That is how to reconnect with yourself. I wish I had done this. I was being torn in a million different directions when I had this surgery that almost ended my life. I was working full time, caring for my mom, caring for an aunt, commuting 60 miles per day one way to work, trying to get a gut issue dealt with which turned out NOT to be surgical! DID not know scans had been misread, docs planning procedures they did not tell me of or that were even needed. Too long a story to fully tell, but I was lead by life events. I was not leading my life. You need to take life by the reigns and start driving it, not let life (and this idiot) keep driving you. Take charge!
I wish you well, Rosemary