how do I move on?

so my boyfriend broke up w me back in January. he told me he wasn't ready.

when I first met him about 2 years ago, he said he didn't want to marry bc of his job path or he just felt marriage wasn't his thing. but when he met me he said that I have changed his mind for marriage.

we both are runners. so he was running w his friend and apparently would not stop talking about me. he really liked me and wasn't afraid to show it. he was always a gentelman to me, knew his boundaries to respect mine. he was all over me tbh. he was the one, and I was his. we would do everything together, tell everything. he was (and is) my best friend.

he still texts me and I always catch him staring at me while we're at school.

I try leaving him on read a lot but he'll still call me and text me back. he first would always talk about getting back together. I can't get over him. I only think about him. but he just won't leave my head. he was my everything. but I still want him in my life. what am I supposed to do?