Falling Apart Together by JB Lee:
 
Tessa Gunter just received the worst news of all, her mom has cancer. With the life altering news, Tessa begins packing up the life she built for herself over the last decade and returns home. Finding herself not only back in her childhood home living with her parents, she's forced to watch the cancer steal her best friend, her confidant, her mother. The pain is unbearable, but not all hope is lost when she finds solace in the friendship of her childhood friend, Graham.

Learning of his long-time mentor's health concerns, Graham Link has to come to terms with continuing on without her around. Having Tessa, the one crush he never got over, back in town reignites old feelings. Graham tries to keep his desires hidden as he helps her deal with the growing grief of inevitably losing her mom. But providing comfort is tricky since his heart already belongs to Tessa.

Will Tessa find herself grieving alone or will she open up and let Graham comfort her through it?

If you're looking for a book that will pull at your heartstrings while giving you a happily ever after, look no further than Falling Apart Together.