He stopped talking to me after I said no sex?

AutumnSky101
I recently told a guy that if what he wanted was sex right now that i wouldn’t be able to give it to him now (we’ve only been talking for a few weeks). He ghosted me for a day, but came back a day later saying that he didn’t want a relationship and he wants to focus on school (this is the first time that he has told me this). After he told me this, he hasn’t reached out to me at all. I’m assuming that he mainly wanted sex lol. The problem is that we are both in the same class.. today we saw each other but didn’t make any contact. It feels kinda awkward because we went from texting every day to not at all. Should I stay cordial with him or should I just mind my business and act like he doesn’t exist? Thank you
He stopped talking to me after I said no sex?
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