I know this next part sounds creepy but I can sense when he's somewhere nearby. By that I mean if he goes on his 15 minute break or on his lunch, I can normally sense when he's on his way back to the registers. I'm not looking around the store keeping an eye on when he's coming back, and I'm not watching the clock. I'll be talking to someone, tidying up the area, or ringing someone up, and I'll get the feeling that he's around, look up, and there he is walking back to the front.
I know it's possible for you to feel attraction and for the other person to not feel it at all. But I have never had a feeling this strong with any other guy I've liked or dated. It's a really strong spark/jolt. Not just butterflies or an increased heart rate, but a jolt. So my question is, because this spark is so ridiculously strong, do you think it's possible he feels it too then?