Night Surrender by Godiva Glenn

Lone wolves aren’t satisfied wolves.
This is a lesson Wyatt has learned the hard way. After pissing off his would-be mate and picking a fight—and losing—to his friend and mentor, Wyatt takes off. He throws himself into his mission, running between the many lupine packs scattered through the States, solving problems and offering assistance where he can.
But he keeps going back to where it all went wrong. A little city where he found his true self, and hated what was revealed. Except now, every time he visits he’s drawn closer to the charms of a human woman named Nancy.
She’s everything he doesn’t need. I mean hell, she’s human. He needs a spirited wolf to keep him interested. She’s just a bookkeeper who likes museums and art.
So why can’t he leave her alone?