Please help

A guy I met on tinder I talked to for two days, we flirted a lot and we talked about what we both want in a relationship (he wants a serious one) so do I. 
He's in the military. 
Well, yesterday he started ignoring my texts. And I know he has his phone because he's been snapchatting on "my story" 
I'm wondering what I should do. I didn't do anything for him to ignore me like this. We were getting along really well. Any tips???