Oh, so many moments. Some that have to do with how fierce she was and some that have to do with how much she cared for Harry.
In Summer Knight, when Harry tells her everything about the Council and she takes his side.
In Something Borrowed, she literally walks through fire in complete trust of Harry.
In Changes, everything about it, from the beginning when she knows she's risking everything to help Harry save his daughter to that amazing battle and her wielding the sword. In that moment she was the angel that Harry kept seeing in his Sight of her.
In Aftermath, even though she was scared, she was brave.
In Cold Days, riding with the Hunt. Telling Harry that she would stick by him.
And last in Peace Talks this was a small moment, but very beautiful, it cuts deep now but it is one of my favorites:
“What if …” I swallowed. “What if that’s me, one day? What if that’s what I’m like?”
“There’s a difference between you and him,” Murph said.
“Yeah?”
She moved a bit, leaned down, and kissed my forehead. “Yeah. You’ve got me.”
Which honestly makes me think Karrin's death was an accident as much as her father's death was a suicide, but that, I suppose, is a different topic.
And I'm sure there are more moments that I'll remember later.