Highland Warrior by Evie North

The Campbell Brothers. Four brothers and their father, landless and desperate, with only their honour remaining.
Ewen Campbell fell in love with Lady Elspit at first sight. He can touch her body and she his, but he refuses to make her completely his until they are wed. Poor and landless, Ewen is forced by Elspit’s father to leave. Now, ten years later, Ewen is a seasoned warrior with powerful friends. And he’s come back to claim Elspit.
Elspit has waited for Ewen for ten long years. Married to a man she loathed and then forced to return to her father’s castle, she gave up on love. Now Ewen is back. Has he really come for her or is it her father’s lands he desires? The boy Elspit loved is now a man, and she is afraid he will break her heart all over again.
And yet she is unable to resist him.