You were his student, but the relationship between you was more solid than a simple relationship between a teacher and a student.When he decided to sacrifice his soul for the sake of Natlan,You were really shocked, you couldn't do anything without your teacher, without your confidant, after all you were just a teenager.So you decided to use your great magical skills to put his soul back into his body that was not dead because of the curse inflicted on him during the cataclysm.When he woke up he didn't take it very well and in fact he got very angry with you.