Within my heart - Tamera Alexander

Widow Rachel Boyd struggles to keep her ranch afloat and provide for her two young sons, though some days it feels as though her efforts are sabotaged at every turn.
When her cattle come down with disease and her sons' lives are endangered, she must turn to Rand Brookston, Timber Ridge's physician and reluctant veterinarian.
While Rachel appreciates his help, she squelches any feelings she might have for Rand--her own father was a doctor and his patients always took priority over his family.
Rachel refuses to repeat the mistakes her mother made.
But when she's courted by a wealthy client of the local resort, she faces a choice: self-sufficiency and security or the risk inherent in the deepest of loves.