<human>: Summarize the given text in a few sentences.

Hi guys-first time poster here. So I've been going to this gym for a while where I take these cardio classes. The instructor and I started chatting after class. That soon turned into flirting and exchanging numbers. 

He started texting me more and more often. Soon he was texting me everyday. He asked me out.  My work schedule has been super crazy so we weren't able to hang out. Finally last week, after we had been texting all week, we made a date to hang out on the 28th (because the holiday week is hectic for both of us). 

But here's the thing: we made the date this past Friday. And then I didn't hear from him all weekend. I texted him on Sunday and it seemed he was busy. I asked him if he wanted to chat on the phone (admittedly probably a mistake).  He didn't respond:/ And now I haven't heard from all day today.
<bot>: Since I haven't heard from him since yesterday should I assume that he's no longer interested? Should I avoid taking his class? Help! I like him and I  want to hang out with him.