I don’t know what to do.

So the guy I lost my virginity to has been hitting me up heavy. First it started when he called me one night (he was drunk so I didn’t think much of it) Then he called again a week later being nice and friendly. Now, weeks later He wants to hang out. The only problem is I’m completely over him(at least I think). And everytime I hear his voice butterflies rush to me and I spend all day thinking about him. Anyways I don’t wanna spend time with him and fall for him and he doesn’t feel the same way. (We hung out as a group of friends and he didn’t say two words to me a few months ago). Is he using me bc I’m convenient or does he really like me?

Background: when I lost my virginity to him...I didn’t really know him and he didn’t know I was a virgin.