Netflix

So I hung out with a friend last weekend he was my ex boyfriend from 9th grade an now we are in 12th grade, well I went over and hung out everything was great then we started to watch Netflix then we started to make out... Then we had sex. So I messaged him like 2days later or whatever and I told him that I actually still really liked him, then he replied saying sorry if I made it seem like I wanted a relationship, now when I see him in school my heart kinda stops and I turn around