I suppose everybody here will end up saying goodbye someday. Life is plenty of things to care of, studies, work, other ways to spend the free time...
What I don't understand is that your main problem is this site itself. You can do what you want, you don't need to be gentle if you don't feel like it, you can not to answer to people, you can be not that involved in things. Just doing your stuff and showcasing it when ready.
In my case, that's what I do. I don't get involved in many things, I try to help those who ask for help, and when I need to leave for a few days, I just leave. Maybe you care too much about things, and when things are not the way you would like them to be, you get tired from everything and you do want to leave it all.
Just relax, take your time for things that are important to you, and spend your time the way you like. Don't feel obligated to anything, but don't cut what you like to do either.
I'm not sure if anything of what I've writen has any sense... Studying is bad for writing in forums I guess.... O.o
yeah but there had to be of been one event, a single moment, that made him not wanna do anything anymore. I know its happened to me before. I just wanna know how silly it was =D
Wait, I hope it wasn't my small criticism to the sonic animation... O.o