Hm, the same thing happens to me in regards to people being closer than I realized they were getting which is really frustrating because they start expecting commitments out of you that you weren't ready for and get upset if you don't wanna go down that road.
It's crazy cuz my ENTP friend and I became best friends years and years ago but it just kinda happened as a matter of course. We would hang out and he'd call me alot but I'd never call him because, well, I don't know, I don't really think about people if they're not right in front of me usually and he usually called me anyway. I think I remember him saying that he wondered why he was the one always doing the calling. I didn't know what to say because I usually just go with the flow.
Well we became really close friends but I still never really initiated conversation. He eventually joined the Navy and it seemed difficult to get in contact with him sometimes, like I had to call this certain number at this certain time or something and I'm not really good with forethought about that kinda stuff and I just didn't mess with it. We did email a little bit, later on... but four years passed and he didn't call me after a bit and I just figured he was busy, and things were happening on my end, I moved to WA and back and ended up stupidly playing the part of counselor for someone (not very well, of course; it was more that I just tried to prevent them from hurting themselves and couldn't really offer emotional support).
Well we talked a bit after that whole escapade and hung out whenever he visited (sometimes he just randomly showed up on my doorstep, LOL! he's hilarious like that) and he finally got out of the Navy like a year ago.
Well apparently he had this beef with me that I never called him and I was clueless. I was actually shocked to know he was upset about that because he had never told me and I don't operate like that myself so I wasn't expecting it.
I think maybe I don't do well with committing to being a best friend? I remember at one point when I was in WA telling him that I had so many friends it was hard to keep track of and I didn't know if I believed in the concept of a best friend for sure anymore. But later on I admitted I did see him as closer than others.
But still, there's obviously a huge difference between the way I approach a best friend relationship and the way most people do. I have a hard time with commitments, always have.
Anyway, there's my rant. Usually people end up feeling like we're closer than I feel like we are. I get to know people quickly but feelings take awhile to develop if they ever do at all, and usually I have to kinda deliberately rouse them anyway.
As for changes in scenery, that's a definite for me. I think I've actually found my home though here in Seattle and I feel like there's enough variety and potential for changing things up here that I could probably live here for the rest of my life. As long as I travel the world like I've always planned to, of course.