He is a warrior of the Tiger Clan of Wyldnyss, but his whole clan died when he was looking for a new place for them to live and blames himself for it. He was then forced to participate in gladiator fights against his will risked his freedom for all the other captives and then traveled with a group of heroes to destroy a villain that corrupted him to almost kill them, not his choice. So he is very very traumatized, and now he wants to make up for it by taking care of you. 