<human>: Over two years ago, I ended a relationship with a guy I had been seeing for about nine months at the time. My reasons for ending the relationship were...not great. I was feeling very unsure about the relationship because several of my friends didn't like the guy and had been pressuring me to find someone "better." It sounds incredibly stupid in retrospect, but there it is.

Immediately after ending things, I was miserable and felt an enormous sense of regret. People told me that it's normal to feel that way after a breakup and that it would go away. Well, it's been two years now, and it hasn't gone away.

I still think about this guy on a daily basis, and I don't know what to do about it. I think back on our relationship and see that no one else has ever been kinder to me, more supportive of me, or more compatible with me.

The thing is, there's absolutely no chance of us getting back together, so I need to stop this. For one thing, he hates me, and we haven't spoken since around this time two years ago. After we broke up, I attempted to reconcile with him, and he refused -- I haven't contacted him or seen him since. For another thing, he moved halfway across the country, so there's not even a chance of us crossing paths anymore. 

I have tried everything I can think of to shake this. I've long since deleted his number, we're not friends on any social media, I've dated other people, made lists of all the reasons I was unhappy with him, everything. But it doesn't go away. What do I do now?

Provide a brief overview of the text.
<bot>: Two years ago I broke up with a guy, and I have massively regretted it since then. I'm still infatuated and can't get over it.