What are my chances that he will take me back?

I rejected one guy i was seeing for while. We kissed few times and went out. It was three years ago. I had one relationship in meantime. Now i realized i actually really like the guy and i think he is good fit to me. I would like to rekindle the romance between us again. What to do and what do you think are my chances?

What are my chances that he will take me back?
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