Hold Fast by Kris Ripper

Zack Scherzo likes his notebooks. And his pens. And, okay, he really loves to organize stuff. He’s organized his whole life into the ideal trajectory for his ten year plan, at which point his career will be solid and he’ll be ready for a husband and family. Everything makes perfect sense.
Until he meets Isaiah.

Driven entrepreneur Isaiah Carlin generally doesn’t get involved with lost causes, like the climbing gym Zack’s trying to keep afloat. But there’s something about the gym—and there’s definitely something about Zack—that intrigues him. He wants to help. He also wants to see what happens when Zack shakes loose some of his rules and allows himself to feel.

When passion collides with Zack’s regimented life path, something’s gotta give. And it looks like that thing is going to be Isaiah, unless he can convince Zack that sometimes real life is even better than the best laid plans.