I feel used

Naomi
So basically I've known this guy since high/secondary school
And we've fooled around in the past and we always mantain contact.
Recently I broke up with my (now ex) fiancé and I arranged to meet up with this guy just to catch up and we went back to his place and had sex. But the following days he hardly texted me and when he did it was like ages after and now I feel really used and cheap. It doesn't help I feel attracted to him..