Well, when I was in the marines, I played all the time... since we had no money, gaming was what we fell back on. Going from playing at least 4 times a week to nothing can really effect a person.
I went through moving, changing jobs, and being very busy.... I still do gaming related things, such as write up stuff, buy books, come here every day, etc... but that can only take you so far.
I feel like it's coming though..... the time when I will find other gamers again and enjoy some good ol RP.