Should I just drop him or not?

Basically, i met a guy on tinder and we clicked really well. we ended up having a lot in common and he's in the middle of exams right now but we want to meet when he's finished. last week he texted me to say hey and we chatted and stuff, but then said ttyl and its been a week. do i text him or do i just wait for him? he sent me a snapchat yesterday of him at the gym, but of just the equipment saying everyday is chest day or something like that. so I'm not quite sure. what do you think?
Should I just drop him or not?
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