Worth the Wait by Charity West

Gemma Rhodes has her entire life ahead of her. At eighteen, she should be at college, living life to the fullest. Except she doesn't have her life even the slightest bit figured out. Instead, she's taken the year off to learn who she is and what she wants – aside from the unattainable Jake Bennet. Her brother's best friend, her knight in shining armor, and a man who thinks of her as a little sister. She knows she should move on, but how can she when no one could ever compare to Jake?

Jake Bennet might be half a world away in the middle of a war, but the Marine only has one thing on his mind – Gemma. The one woman he can never have. There were some rules a guy just didn't break, and dating his best friend's sister was one of them. Riley would break him if he caught Jake looking at Gemma like the lovesick fool he was. When he's injured and sent home, he knows he should stay away, but sometimes temptation is just too much for a mere mortal to handle.

There's only one thing Jake needs to know… Can Gemma love a broken Marine? Because she's had his heart for years, and if he's learned anything, it's that some things are worth the wait.