Derek was glad that Stiles was no longer crying or hyperventilating, though he would have preferred a smile. "I don't - what kind of phrasing is 'like you like you' that just sounds - " He dropped his head and sighed. "I'm not romantically interested in you because you're my student. It has nothing to do with your personality or your emotions and certainly has nothing to do with the fact that you just had some kind of...something." He waved his hands. "It's normal to get upset every once in a while. I don't know why and while I would like to know if you would tell me, I will understand if you don't."