What Happened He Disafreakinppeared!!?

I met this guy online, and we had been playing a game on line back and forth for weeks. He finally asked me out. We went on a date, and I thought it went well. We went back to his place and snuggled...Then we sat a date to hang out again. He actually picked the day, which was a lot sooner than I would have thought. All of a sudden he quit talking to me the day before he was supposed to come over. Really weird. Why would he be all gang ho about it, and then just dissapear??