Irrational thoughts

So. Infatuation with a person should die out after a while with no communication and no mutual friends. But here I am. A year later still thinking about a man I've never met in person. We were both going through divorce. And somehow conversations led to "I love you". We blocked each other. We stopped talking. I didn't want to have any influence on weather or not his marriage indeed went through divorce or rebounded. I didn't need the distraction of some whirlwind romance. I told him I wouldn't wait. I would date. I'm not holding out for a maybe. But no man is him. Every man makes me think of him, sometimes I ache at how much our conversations satisfied me. We checked in every few months. I really just want to forget about him altogether. Everything about him spoke to everything in me. Smh. Some kind of obsession ig. I miss him bad. Any tips?