How to get over someone you've known for 6 years?

Long story (kinda) short, I knew this guy had a physical relationship with him for 6 years, he didn't want a romantic relationship. I was fine with that. He pretty much ghosted me for about 8 months, it hurt for a bit. I was making an effort to move on, he came back saying he was busy with work couldn't respond because he was working long hours and was tired. He asked if I wanted a relationship, I said yeah, but I told him he can't drop contact or I'm done. He agreed we made it official in Feb/March. He ended up ghosting me again so I blocked his number. I understand being tired, and not talking all the time but it's been 7 months since we've agreed to be exclusive, no words from him. He ghosted me again and I'm upset with myself for letting him back in.

How to get over someone you've known for 6 years?
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