Breaking up with a boyfriend is one thing, but moving away from a bosom buddy is every girl’s worst nightmare. So when Rachel Bertsche—author of the new memoir MWF Seeking BFF: My Yearlong Search for a New Best Friend (out December 20 from Ballantine Books, $15) and occasional contributor to Chicago—sets up house with her husband here in town, far from her New York besties, she embarks on a mission to find a new accomplice for Sunday brunches and yoga classes. Through mutual-acquaintance hookups, improv lessons, and even friend-matching websites, Bertsche organizes one lady-date a week for a year. What ensues is a humbling, hilarious journey most postcollege women can relate to, thanks to Bertsche’s candidness (“Am I such a social leper that I need to purchase my relationships?” she muses while signing up for RentaFriend.com). The moral of the story: You have to make the first move. Put MWF on your book club list now. Bertsche’s story has already been optioned for TV.