We were cool for at least 10 yrs after college. I have no interest in having sex with him again bc I didn't really enjoy the sex. I did it bc I wanted the experience (he was one of my firsts) and the more we did it the less I liked it. And a relationship with him wasn't interesting bc we weren't compatible as we wanted different things in a mate. These days we are friends on FB but that's about it. But we stayed in touch more often for about 10 years until he left town.