Love, Diamonds, and Spades by Violet Duke
Fiercely independent single mom Quinn Christiansen likes being known for having a heart too hard for any man to break. So when she finally meets the lone man in town inexplicably undaunted by her ball-busting tendencies, she has absolutely no clue what to do with him. Not only is he ridiculously handsome, and surprisingly sweet under his gruff and gritty exterior, he's also clearly determined to invade her life. Rylan Grey isn't used to getting a woman so worked up. Well, not in a bad way, at least. And yet somehow, his mere existence seems to nettle the guarded and gorgeous Quinn to no end. But that's okay. He's a patient guy. Truth be told, though he's never wagered anything he's not willing to lose--namely his heart--where Quinn is concerned, he's more than ready to ante up...for what's bound to be his riskiest gamble yet.