Shooooosh. [He cuddles her close, that hand moving to her hair and stroking. He'd thumb her horns a little but she doesn't have any, and he's not really sure what else to do, so he's just struggling to bridge the gap between troll and human comforting language]

You're back noww. You wwere lost, but noww you're back. You're strong an' perfect, an' so beautiful. An' you'vve showwed that Highblood wwhat for, that he can't mess wwith us. You'vve got nothin' to be ashamed of, so far as I'm concerned.