Two By Two- Nicholas Sparks

a single father discovers the true nature of unconditional love when a new chance at happiness turns his world upside down.At 32, Russell Green has it all- a stunning wife, a lovable six year-old daughter, a successful career as an advertising executive, and an expansive home in Charlotte. He is living the dream, and his marriage to the bewitching Vivian is at the center of it. But underneath the shiny surface of this perfect existence, fault lines are beginning to appear . . . and no one is more surprised than Russ when every aspect of the life he has taken for granted is turned upside down.