Blocked? Or...?

So basically I just recently decided to try Grindr, but not really familiar with like... the etiquette I guess?So I am one of those ppl y'all probably hate who has no picture, very little info, and doesn't reply to ppl because I'm so nervous and unsure about it all.But then I saw a face I recognized... no one I knew, but someone I had seen several times at the coffee shop. Who had made long eye contact with me in the past that made my heart jump.I wasn't looking for him, and I didn't even know he was gay. Buy I'm afraid I might have freaked him out.I managed to send a message that said something along the lines of how he looked familiar and I think I had seen him around that coffee shop.He replied later that night after he had already gone idle and I had gone to bed. Saying I probably had seen him before, and he asked for a face pic to confirm. Silly me, that was probably kinda weird for him...The next morning I very reluctantly sent one, apologizing for my rudeness.Only as far as I can tell, he never saw it... As his last online time has reached one month ago now...So I understand ppl get busy. And I was really trying not to worry about it... But I just feel like if our roles were reversed, I would have been very curious to see who this mystery person was! But I don't even know how Grindr's display system works exactly.So what is it I would see on my end if he blocked me? Would I even know? I guess I wouldn't blame him if he did... But it just sucked to have this happen the first time I go out of my comfort zone.And now I'm afraid to even return to my coffee shop in case hes there...And yeah, I know this is all very silly probably...