Petrichor!

Edit: I see RicePaddy has already pointed that one out, so let me add some of the words I like from the Dictionary of Obscure Sorrows (http://www.dictionaryofobscuresorrows.com/) -

Sonder, n. the realization that each random passerby is living a life as vivid and complex as your own ;

Adronitis, n. frustration with how long it takes to get to know someone—spending the first few weeks chatting in their psychological entryway, with each subsequent conversation like entering a different anteroom, each a little closer to the center of the house—wishing instead that you could start there and work your way out, exchanging your deepest secrets first, before easing into casualness, until you’ve built up enough mystery over the years to ask them where they’re from, and what they do for a living ; and I really really love

Anecdoche, n. a conversation in which everyone is talking but nobody is listening, simply overlaying disconnected words like a game of Scrabble, with each player borrowing bits of other anecdotes as a way to increase their own score, until we all run out of things to say.

Edit 2: I forgot Obstreperous - it sounds perfect for what it means.