Mayfly Hollow by Anne Lucy-Shanley

It began as a typical day…

Fiercely independent bakery owner Kate Halloran likes her life the way it is. Casual sex suits her to a T. Work hard, play hard is Kate’s motto. No strings. No demands. No obligations. The ties that bind chafe. She learned a long time ago that the only person she can depend on is herself—and that’s just fine thank you very much.
Then a fast-acting highly contagious novel virus sweeps the globe, ushering a nationwide lockdown. Violence erupts in the streets. Chaos reigns. With the population decimated, Kate’s self-sufficiency kicks into overdrive as she fears she’s the sole survivor. When the dead awaken, Kate becomes prey. Desperate and hunted, she undertakes a dangerous journey—fleeing to the only refuge she knows.

The sanctuary of Mayfly Hollow isn’t without its perils. Can the other survivors there be trusted? And what about the mysterious cowboy called Teller, who gets under her skin like no man ever has? There’s more to him than meets the eye—she can’t help but wonder how much of his aww shucks routine is genuine.
As threats close in on every side, can Kate set aside her complicated past to navigate the new world order?