Why does he make me so emotional?

I’ll spare you the long story but I just need to get this off my chest. We’ve known each other since we were kids, liked each other so much in 8th-9th grade. Shit happened and apparently he feels rejected by me (or that’s my guess), so we completely lost touch. Every time he tried to tell me how he felt, I ran away or made some excuse because I had no idea if I felt the same. I didn’t think I had feelings for him, but now when we run into each other, we don’t speak. We just catch each other’s eye and he doesn’t smile. He’ll just turn around and literally walk away as if we never knew each other. And then I end up wanting to cry. I don’t get why he makes me so emotional when we never even dated. Does this mean I cared about him more than I realized?
Why does he make me so emotional?
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