In the backstory, Luna granting the Forsaken her forgiveness and giving them her blessing after they agreed to take up Father Wolf's duty. Even after they murdered their own father and her mate, not to mention causing chaos in both the Shadow and the World of Flesh, she still loved her children enough to give them a second chance.
In general, relationships between members of an Uratha pack. Werewolves genuinely care about everyone in their Pack, got each other's back no matter what, and protect every member, be it Uratha, Wolf-Blooded or even humans who don't even know the whole truth. True Companions in the truest sense of the word.
Not only that, but the Second Edition reveals some Werewolves actually are rather open-minded about who can join their Pack. There have been cases where they included regular wolves and spirits in their members, or even other supernaturals in their members. Including Kindred and Prometheans, despite the inconvenients these can cause. Rather touching, considering how widespread Fantastic Racism is in this setting.
In the First Edition, the law stating "The Wolf shall Cleave with the human" meant werewolves weren't allowed to mate with each others, and as such had to rely on humans to breed. Comes the Second Edition, this taboo has been removed, but the law is still there... and now means werewolves should interact socially with humans on regular basis, because even if they are half-spirit, they still are part human, and this is a side of their being they shouldn't neglect.