A Heart Divided — Megan Chance

THERE ARE SOME BETRAYALS A WOMAN CAN NEVER FORGIVE...
Sarilyn Travers trembled when she spotted the lone rider crossing the high Colorado plains. Conor Roarke was back. It had been only a year since he'd loved her and used her to betray her husband and brother. Now, as a woman alone, she could take no chances with a man who could make her forget family ties, consequences, and the truth that lay just behind his sweet words and tender smile.

AND ONE LOVE SHE CAN NEVER FORGET.
Conor would not give up his search for Sari's brother. Michael Doyle had killed the one person Conor had ever depended on -- his father. Now the trail led him back to Sari's ranch -- to the woman he had loved and left a year before. He planned to charm her with false kisses and easy lies, avenge his father's murder, then walk away again. But he never counted on her fury -- or his passion. Conor Roarke had one emotion burning in him as real as his hatred for Sari's brother: his desire for her ...