What do you think is going on here?

Ok so I know this guy who likes me and i like him back, we always play fight, flirt, get all touchy feelie, stare at each others eyes, hold hands ect ect. And ofcourse were too shy to make a move but hopefully the time will come. For months, he always used to come stop by the house everyday with his car just to see me, sometimes he would just roll by and wave to me while I smoke a cig outside. I noticed lately its been 3 days since I even seen him. He hasent stopped by at all, I tried contacting him but no answer, and the closest I came to seeing him was earlier today when his car was a few blocks away and for the first time ever he didnt make the turn onto my block. Can somebody explain to me whats going on herE? I really like him but this is the first time I have gone days without seeing him. And the last time I saw him there was no drama or nothing, just smiles and good conversations