Thanks Mike! I have left each interview that I thought went swimmingly well, thinking positively and telling myself "they surely will hire me". I've wound up terribly disappointed and sad so this time around I've learned from the past and am telling myself "I think it went well, but who knows what factors they use to decide".
The Principal and I both went to Boston College and he mentioned that about 10 times during the course of the interview so perhaps that will boost me up a few brownie points!