Up for Everything by Heather Young-Nichols

Sam lives the life most guys want—a great job out of college, a big move, and freedom. But he didn’t expect to miss the people back home so much when he moved across the country to California.
Then he jumps at the opportunity to crash his best friends’ honeymoon. A couple weeks in Hawaii is exactly what he needs to figure out his life.

While there, Miriam Mizrahi cracks through Sam’s hard candy coating and begins to see the person he really is. The person he’s kept hidden from everyone.
Sam wants her, is confused by what’s happening between then yet he can’t deny the way she sees through his bravado. He might even be falling in love with her.

Then, without a word, Miriam is out of his life causing Sam to throw responsibility to the wind.
If Sam can’t figure out what happened between Miriam and him, the one woman he’s had real feelings for will become a memory. But he also isn’t sure he can handle the truth of why she left or if he’ll be able to convince her that he truly is up for everything.