I hate feelings

So I hooked up (We made out and I gave him a BJ, no intercourse tho) with this guy twice from my school. It happened because we’ve just had a shit time with dating lately and well, we were up for some fun.

It gets complicated because he keeps talking about this girl to me, like when we finish... I can tell he likes her and I know she likes him because she’s told me. So far we’ve kept what happened secret and I’ve called off anything else from happening and told him to sort out his feelings for this girl. I feel guilty for her and not saying anything but mad that he might have just used me, I want them to work out because I can tell they both would be cute. But I also crave something with him... and dick yanno - Have I made the right choice to stop things or is it fair to continue because they’re not together?

Pls offer advice on where to go from here!!