Knot in Doubt by Ember L. Nicole

Hiding was safe, being claimed was salvation…

Maisie spends her days wiping spills from diner tables, her head bent low to avoid the penetrating gazes of the alphas who drift through the door. Her bruises have almost faded, and life is looking brighter.
Down the street, construction is nearing its end, and with it, the routine visits from the workers who have made a habit of stopping by for a slice of her homemade pie. Maisie isn’t sure if that’s a good thing or not. She thinks she’ll miss them, but she knows better than to put her trust in any man. Not again.
Wyatt, Elias, Knox, and Hunter have been quietly watching over the skittish omega for longer than she knows, ready to act if the man responsible for her fading bruises ever shows up. They want her. They’ve always wanted her, and will do bad things to anyone who dares lay a hand on her.
When her past unexpectedly resurfaces in the form of her abusive ex-husband, four rugged alphas protect her. They claim her, publicly and unequivocally, as their omega. Then they take her to their rural farmhouse to escape her stubborn ex.

Four men. One promise. She will never be afraid again.