So about 3 weeks ago this guy messaged me on a social networking site. We chatted for a while and both seemed to enjoy the conversation. He invited me to talk more, so I messaged him again two days later. He took a whole day to reply to my message. I then messaged him again, and since then he hasn't replied. :( Oh and he also hasn't updated his profile and it seems like he hasn't been online all this time :/ What could be happening here? He seemed like a really nice and down to earth person btw. I don't see any reason why he would go completely offline for almost a month?