Returning with an ex after 5 and half years.

I never believed that such return was going to occur. We split in very bad terms. Younger than me. But he never forget me In this 5 years. He cried a lot when he saw me. The 1st days. I feel a lot of affective attraction to him. Feelings of affection and many things. Of course the past appear. I try to kick it out. ¿Shall it works? He and myself want it. Don't know if that is possible