Never experienced this before please help?

Hello, so I have a guy friend I met in a college zoom class and since the day we met and started talking, there hasn’t been a day when we don’t communicate. I’ve known him for almost 6 months now. When we would hangout sexual activities would usually always happen just until recently. So we didn’t see each other for about 3-4 weeks because I got sick and now it feels like our whole friendship has reset. When we finally hung out after the 3-4 weeks we haven’t kissed or done sexual things. And when we hangout now it’s pretty wholesome activities like exploring parks or drawing together. And we still haven’t kissed or done anything else. So I’m very confused on how we could go from such a sexual relationship to the complete opposite. Does he prefer just spending time with me now? Is he doing sexual stuff with someone else? I have no idea honestly lol.
Never experienced this before please help?
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