Now that I've had a few months to ruminate (oh, I guess I should have written "spoiler alert" or whatever at the beginning of this post), I think my favorite thing about the second season is that Mary's Great Scandal (i.e. that a dude died in her bed while attempting to take her virginity) -- which is basically the driving plot point of the entire series -- is, by the end of Season 2, NBD... to everyone, but most notably to Mary herself. Mary goes practically insane keeping this secret for years, feeling so guilty about it, agonizing over it, etc.; but then, in the end, she gets to a point where she just can't feel anything about it anymore... and it's fine! Sure, people like Matthew and her dad are surprised at first when she tells them, but they get over it quickly. And it's safe to assume the Pamuk of it all will be essentially forgotten by the time Season 3 rolls around.
I don't know, I just find this a really important message (lol)... and also applicable to our modern day lives? While none of us likely have secrets/scandals/anxieties as glamorous/intense as Mary's, we all have certain things, I'm sure, that we feel intense shame about and that we keep to ourselves. You'll be sitting with friends at brunch and something will strike a chord and you'll think "phew, thank god no one at this table will ever know I secretly write love letters to my old college professor!" (or whatever your particular "Pamuk" is). Not too far down the road, any such "scandal" you might be involved in now will almost definitely seem inconsequential -- such a trifle! -- and you'll be reminded of it one day and tell the Matthew in your life about it and he'll laugh and that will be it. It's nice and comforting -- when everything feels so heavy and uncertain -- to envision that future in which your present biggest concern will seem silly, a distant memory, at the very most just a brief clause in an early paragraph in the Wikipedia entry of your life.