An essential look at the love language of texts, helping you decipher the personalities of online daters, the subtle signals from your romantic partner, and the red flags hiding in plain sight.When it comes to modern relationships, our thumbs do the talking. We swipe right into a stranger's life, flirt inside text bubbles, spill our hearts onto the screen, use emojis to convey desire, frustration, rage. Where once we pored over love letters, now we obsess over response times, or wonder why the three-dot ellipsis came . . . and went.Nobody knows this better than Dr. Mimi Winsberg. A Harvard- and Stanford-trained psychiatrist, she cofounded a behavioral health startup while serving as resident psychiatrist at Facebook. Her work frequently finds her at the intersection of Big Data and Big Dating. Like all of us, Winsberg has been handed a smartphone accompanied by the urgent plea: "What does thismean?" Unlike all of us, she knows the answer. She is a...