I thought we had an understanding...but that I may have been wrong.

So I made out with one of my good guy friends. We both knew before hand that it was just making out. Before he had joked that I was going to get attached and I told him that I'd be fine. The thing is, now he's acting weird. Like we don't talk as much and when we do it seems awkward. I know that kissing him was maybe stupid, so I don't need a lecture on that. But what do I do to help things get back to normal? Should I just keep acting as normal as possible and hope that he follows suit? Should I give him some time and let him come to me? Help! I'm so lost!
I thought we had an understanding...but that I may have been wrong.
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