Saving Hope by Annabella Michaels

As a police officer in the small town of New Hope, Rhode Island, Lieutenant Mike Archer rarely sees more than the occasional drunk and disorderly. When a man tries to break into the vacant house next door, Mike is shocked to discover his best friend’s younger brother.
Killian Gregory left New Hope when he turned eighteen, setting his sights on New York City and building a successful web design business. Years later, reeling from a messy breakup, he volunteers to return to his hometown to close out his aunt’s estate. The last thing he expects is to find himself in the arms of his older brother’s best friend…his sexy but very straight best friend.
The more Mike gets to know Killian, the more he’s drawn to him, awakening feelings he’s never felt before. Unaware of Mike’s inner turmoil, Killian fights his growing feelings.
But Mike’s all in, even if he has a lot to prove to keep Killian from running away again.

If you love small towns, best friend’s brothers, and bi awakening, you’ll love Saving Hope.