How to get over “the one who got away”?

We were long distance, and I fell in love and felt a connection I’ve never felt before. We both felt the spark. In short, we had growing to do, especially myself, in handling our own childhood traumas and how it affected our relationship. We broke up months ago, and at the time it was messy.

I had a rough summer - tried rebounding and when that obviously didn’t work, finally met with a therapist and have been in a lot of work. I’ve been going out on dates etc. but I reached out eventually to apologize, and I asked if we could be friends. I want him in my life… even if just as friends. He said yes but admitted he’s currently talking to this girl he’s working with and admitted he likes her a lot and might be official soon.

I’m happy for him, but I can’t get over my feelings for him. Even after all the no-contact. Even after dating others. Just feels like the right person for me, just was the wrong time. How do I get over him for real? Do you ever get over them?