Promises

People make promises they never end up keeping. He promised her he would stay by her side. She promised him they would be best friends for ever,

But he didn't keep his promise.

After a horrible accident, Lillian and Kaden knew they were alone, and that all they had were each other. Although Kaden breaks his promises and they drift apart.
Few years passing without keeping in touch, Kaden living a privileged life meets Lillian as a classmate. But both have changed. Lillian is angry, Kaden wants to make amends.
This pair continues to deal with their grief, they make decision and action that either end up helping each other and in grief together or alone, letting the grief consume them.