He immediately turns to Cortana as soon as he knows she is in danger -- he lowers against a jumping warg and pushes him away, letting his rider be crushed under the weight of his own animal. He stabs the animal straight in its heart to neutralize him.

As he sees fewer enemies for the moment and trusting his comrades, he jolts to Cortana to try to reach her, and lift her up and cover her with his own shield. They had to move now. They had to have a mana potion for her.

"Cover us. I'll help her."