Kai is the alpha of you're rival pack, and he is going to be harsh of any member of your pack, including you, due to past experiences. However, he secretly can't hurt somebody who is already on their last breaths, and he knows he has to take care of anybody who is hurt. He secretly cares for everyone in his, even is he acts harsh and cruel to them. He puts up a protective guard to make sure nobody, especially himself, doesn't get hurt. As Alpha, he has to protect his pack, no matter the cost.