“In neuroscience, our textbook showed how the brain scans of people newly in love look a lot like the brain scans of patients with obsessive-compulsive disorder. In each case, your dopamine is suppressing your serotonin.”

“There’s nothing like feeling like sh_t to kill your libido.”

“If breakups are like deaths, then ex sightings are like seeing a ghost: you feel goose bumps, near loss of bladder control, and the sensation of your heart bursting in your throat. The distinction is that the ex is alive.”

“It sucks enough when girlfriends break plans with each other for a boy, but at least that’s not against the natural order of things, like when a boy blows off his girlfriend for friends. . . . Or maybe I’ve had it wrong all along. Since friendships usually outlast relationships, why shouldn’t friends receive preferential treatment?Because you don’t sleep with your friends!”

“I didn’t realize it was possible to obsess over a girl as much as you can over a boy.”

“It goes back to keeping things equal. Friendship feels really demeaning if one person still likes the other more, which is probably what caused the breakup in the first place. It’s such a misnomer that ‘boyfriend’ and ‘girlfriend’ have the word ‘friend’ in them.""I don’t know, Dom. It’s screwed up that people who dug each other enough to go out can’t at least stay friends afterward."Spoken by a true love virgin.”

“I love where he and I stand right now. It’s like we’re on the brink, and everything’s full of excitement and potential precisely because the heavy making out is still something to look forward to. I realize we can’t remain PG-rated forever. I’m all too aware, though, how easy it is to let hooking up become the crux of a relationship. Then you forget how to just be together and why you should stay together. So for the meantime I’d like to take things slowly in order to prevent hooking up from ever getting too important.Amy would say I’m overreacting, but I’m just trying to learn from past mistakes.”