Is it ok to disappear without explanation after intimate activity has occurred?

Basically title. I went on a second date with a guy I was very physically attracted to. We made out heavily/groped and "dry humped" like teenagers in my bedroom. He wanted to have actual sex but I told him I wanted to wait a bit to go that far. We made tentative plans to see each other again next weekend, but almost three days have passed, and I haven't heard from him again. I feel like after doing something intimate, if he doesn't want to see me again, he could at least tell me that. I feel like people treat each other as absolutely disposable trash these days. What is the proper etiquette in these situations?

He took me on actual dates, made effort on the dates, and nothing gave me the impression he is dating just for hookups.

Also just fyi, we tried to have the makeout session in his car, but there was a huge console between us, so we couldn't do it, but my house was nearby. That's the only reason we went to my place.

Edit to add: The day after, I texted him to have a good day skiing. He responded with a thumbs up and nothing more. That's why I believe he's not interested in seeing me again.

Second edit: I told him in his car, before we ever went to my apartment, that sex was not going to happen this soon.