Am I looking too much into it..................?

He probably just didn't feel like starting a conversation. Honestly, I stop IMing back if people keep doing it every time I get on. I don't do it to be mean, I just really don't feel like having a conversation everyday through IM. I only IM a very very small amount, so he could be like me. Maybe you should just not IM him anymore. I had a girl who kept trying to do it and it was very annoying. I would say do it every now and then, but just wait some time!