How to Fold a Heart In the time before texting and email and Facebook, we used to pass notes. Not the quick “Do you like me? Check the box,” sorts of notes, but long-form handwritten letters alternately squeeing and agonizing over our latest crushes, where we would sit at lunch, what SHE said about HER, what we were doing that night or movie we’d see that weekend — you know, the important topics. These weren’t thoughts jotted down in 140 characters, but scrawled on notebook paper and passed…