So tired of the process

Why do we get so attached to people? Why months after i broke up with my fiance because i felt God talked to me and time showed me i was not being trated right, why i am still asking myself if all the prayers I did for him to change are being answered now? Why if i gave him an opportunity and he showed he was the same? Why when i need someone the firsts person i think about is him? How do i know? What else do i need to be fully convinced that he is not the one now or ever? He still says he loves me and that me not believing him and trying to mobe forward hurts him because he has never loved someone the way he loves me even when he treated me wrong. And that he is completely ashamed and repented. But somehow i can’t get myself to go back to him. What if he isn’t the one? What if this is what God wants for both of us? I pray and pray and sometimes i feel peace i know He hears me but i am not so sure of what His answer is. I know I have to pray more and read more the Bible and commit more to him. I’ve been working on that. But what about what i ask in my prayers?