A Pack of Vows and Tears by Olivia Wildenstein

She thought the fight was over, but it was only just beginning.

At the end of the trials, Ness Clark has earned her spot in her all-male pack and has won over her new Alpha, Liam Kolane. But her place amongst the Boulders and at Liam’s side is compromised. First when her cousin, who’s become enemy number one, claims Ness helped him elude his death sentence. And then, when August Watt, Ness’s childhood friend and confidant, comes home to Boulder, Colorado.
Although August’s plan was to pledge himself and return to active duty, he finds himself incapable of leaving. This becomes problematic for Liam and Ness, because a mating link has clicked into place between Ness and the ex-marine. If not consumed, the link will fade, but that’ll take months. How long and hard can two people fight a physical attraction that renders their bodies unreceptive to anyone’s but their mates?
Ness is tired of fighting, tired of having to prove herself worthy of her pack’s trust and of her Alpha’s affection. But when an enemy pack arrives and threatens the Boulders, she has two choices: step aside and let the wolves who have pushed her away fend for themselves, or step up and help them fight the newcomers.
Ness has never stepped aside…not for anyone.
Why would she start now?