You Know Me Well by Nina LaCour & David Levithan.
I was actually standing in line at the West Hollywood Whole Foods and the lady in front of me was taking a century when I spotted this book. IDK WTF it was doing in a Whole Foods, but after however long of wishing the lady would get her shit together I was like, fuck it, went over, grabbed the book, and hopped back into the back of the line.
When I finally got to the register and checked out, the cashier was asking me about books and we ended up bonding over a love of independent bookstores and he told me to check out Small World Books in Venice Beach, CA. So, safe to say it was well worth it.