what do you think I should about this skater boy?

I’ve known this guy probably since the summer. He skateboards the outside parking lot where I work.? One day, my friend I work with, Danielle, and I went outside to get buggees and he was outside skating with his buddie, Eddie. I looked over to where he was skating and said, “Don’t fall on your face” and he fell right after that. I felt so bad. Well after that, he asked me if he fell if I’d catch him and I said yeah, I would. Well, whenever I’d see him he’d be all like where were you earlier? I fell and you never caught me. I kinda just shrugged. Well later on, he was picking on me about that and I started walking away and he screamed “I love you!” I kinda thought nothing of it. I thought he was just playing or whatever. He came back inside and apologized and I just grinned. I had posted I wanted a hug on a bulletin on a social site and he came into the store and just hugged me. And I was like what was that for? And he said, “You wanted a hug, right? Well, now, when I see him, he asks me how I’m doing and how was my holiday and such. There was a day I took him and this little boy home because it was so cold and they were practically begging me. He hugged me twice because I finally gave into driving them home. Well, when I got to his house and he got out of the car, he said, “thank you! you’re amazing! I love you!” Well, I was sitting there thinking this is the second time he said that. What do you think I should do? I’m not sure if he’s serious and is acting like he’s joking just to see how I react. Everytime I see the boy, I wind up getting the butterflies.