A Change of Heart by Marianne Arkins

Returning to Wyoming after a six-year absence, Jake Langley finds more than just changes in the now run down family ranch. His warm feelings for a former girlfriend have cooled, and he finds himself drawn to her sister and his former best friend, Emily. His discovery of the sisters' well-kept secret, however, upsets his long-term plans and sets duty against his heart's desire. Now, four hearts and four lives will be changed, forever. (From The Wild Rose Press)