Everyone in life has a purpose, even if its to serve as a bad example.
Ewan always stood in the shadows of his brothers. So when the most beautiful of women leaves his brother to run away with him, he thinks his time to shine has finally come. Unfortunately, she was only using him as she’d used his brother before him. All she wanted was to get to England so that she could leave him for the man she really loved.
And because of Ewan’s actions, his brother is believed dead- killed by his own hand over the grief of losing his love to Ewan. Eaten alive by guilt and unable to stand himself, Ewan has withdrawn from the world and wants nothing to do with it.