He came back to the table as Hermione started her apology. "Professor Black - Narcissa - it was... wholly inappropriate of me to lose my temper and to attack you using magic. You're a teacher here and are entitled to the respect your position grants you. I, um," She took another long breath, and Severus realized she wasn't fighting back anger, but tears. "know that we have an unusual set of circumstances between us, and that I will no longer be in your class anymore. But I would like to have your forgiveness for my outbursts."