How do you win back someone that still loves you but isn't with you?

My fiance left me a month ago. Over the past 2 weeks or so he has been coming around. He's been calling me and coming over to my house to hang out for a little while. Every time he sees me he gives me hugs and the last couple times he's gotten teary eyed. He's coming over sometime soon so we can talk about us. I really, really want him back. What should I do?