Guys, Prolonged eye contact-attraction or just paranoia induced observations?

Poppet
So a guy that works in a local store always seems to notice me walk by, he gives me prolonged eye contact but never speaks to me. He watches where I go whilst doing my errands but as soon as I'm in close proximity, he looks at everything but me. As soon as I come around the corner, he's there & his eyes find me immediately. For the past 3 years it's been that way. When I try to say hi or start a convo, he gets kinda nervous. Short responses. Anyway, I went in his shop a few days ago & bought a table. He joked about calling me at 6am to confirm delivery time. I just kinda laughed it off & suggested after 9am would be great. He did make small talk when he delivered the table but then quickly left. Following such, he has been actually saying hi when he sees me out shopping. So today I said in passing that the table is perfect & now he has my number, he can call me anytime. He just maintained eye contact through out the exchange & looked kinda surprised, like a "oh right" expression but no actual verbal response. So I'm guessing he had no idea that I give him prolonged eye contact & notice him watching me because I find him attractive. So now I'm thinking his past eye contact & observing was him thinking I look suspicious or something & feel like an utter idiot that I suggest he calls me anytime & I still have to walk past him daily to do my shopping. So do I just ignore his observations now? Guys, please explain what I'm doing wrong here? Lol
Guys, Prolonged eye contact-attraction or just paranoia induced observations?
4 Opinion