I'm not going to say that social media was our demise (I myself enjoy Facebook too much to make such a brazen statement), but I do think that with the rise of these sites came the sudden commanding impulse to look awesome in photos. After all, we want our 500-plus friends to think we're beautiful.
People that we don't really know actually mean more to us than we realize, especially after they disappear into the next life or they fall into some invisible black hole that scoops them up, or they just move to another neighborhood.
I gravitate toward certain people. I meet tons of people and usually end up loving most of them, but some pull me in deeper immediately. I get an instant connection that I can't deny or ignore; it doesn't make perfect sense but just happens.