The Ocean Between Us — Susan Wiggs

On the surface Grace Bennett has it all -- three wonderful children, a devoted husband and a life of adventure and travel. But somewhere between her husband Steve's demanding career, raising a family, the constant uprooting and the Navy's routine, Grace has lost her sense of self. And when a nearly forgotten secret resurfaces, her discontent comes into sharp focus. Something needs to change. She needs to change.

Then duty calls. Now, separated by an ocean of regrets and longing, Grace and Steve are forced to take a hard look at their faltering marriage. But when the unthinkable happens, Grace is left to face a Navy wife's worst nightmare - the cold truth that life's biggest chances can slip away while you're looking for guarantees.