Is it normal that i'm no longer desensitized to city attitudes?

Just so everyone here knows, before I start, I really love the city and I'm not by any means complaining about the people who live in it. If anything I'm trying to learn how I can get this apathy I used to have back.

From the day I was born until about age 15 I had lived in various suburbs near Detroit. They weren't nearly as dangerous as the actual city of Detroit, they were actually pretty safe, but they were still far from being quiet and full of polite people. Growing up there I learned how to deal with the general rudeness and negativity that comes with living in an urban/suburban city. If somebody acted like a total asshole towards me, I would just shrug it off. Seeing people start fights over petty things was also commonplace and I wouldn't think anything of it. Physical and verbal hostility seemed like just ordinary things and didn't affect me unless they were directed towards me (I typically avoided conflict though). Now as I said, this was a safe place to live, you could walk around at night with few problems, crime was relatively low, but the people were still very different from the ones I will talk about next.

So after age 15 I moved to an extremely rural town with a population of about 200 people at least 30 minutes away from any real civilization. I really hated living in this kind of place, but the people were notably different. Few fights ever started, and when they did it was just between a couple filthy rednecks. In middle-early high school I had been used to about a fight at least once a week. Here there was only about one a year. People were also much more polite, although they could be very passive-aggressive at times, people rarely outright insulted you or seemed ready to fight over a small conflict. Over time I just started to adapt to this. Despite these things, life in the middle-of-nowhere just isn't for me. Nothing ever seems to happen here.

Now I'm moving back to another suburban/urban area and I feel like I'm viewing things with a new set of eyes. Everyone seems so angry all the time and hostile over next to nothing. People lose their patience so fast. I feel much more cynical about the people around me.

What I'm wondering is if it's normal that I lost my desensitization to city attitudes and if I can get it back easily.