He rejected me, but now he wants me?

After 2 years of being more than friends, I finally asked him what we were. He said we're nothing but friends, so my dumb self said oh we can't date. He said no, so I cut everthing off. I stop calling, texting, and having sex with him. I moved on, now 6 months later he's been calling and texting me. He said people change their minds everyday and make mistakes. He said he wanna be my boyfriend. I am honestly lost. All I can think about is why i wasn't good enough the first time. I feel like he's only back because whomever he had lined up didn't work out. It took me a while to get over him and I'm still not over him. What would you do?
He rejected me, but now he wants me?
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