I just get bored
It's simple
I get bored easily. I just always want things to keep changing, always craving excitement, getting tired of repeated things. Even people. I even find myself occasionally wondering how the hell I'm going to date someone for a year, not to talk of being married for longer than that. I mean, people get boring, things get boring. Or maybe it's just the kinds of people and things I've related with.
Still, I get bored. I can't say I move on easily. There are still things I've been incapable of moving on from. But I do like when things keep changing. As long as I keep moving, adapting, doing new things, there is no chance that I'd be idle enough to like doing nothing for a while and then inevitably start falling down the black hole in my head.
I like excitement, I crave it and when I don't get it, well, everything happening now is proof how terrible it is when I don't. Every other way to define me stems from this.