For a moment, the present melted away.  Sebastian's eyes were filled with the brotherly love he actually has for Kirsten.  It is just buried under pain and denial.  In that moment, he also had gratitude in his eyes.  A clear picture of who he use to be.  A perfect moment of how it was before.  One hurt, the other healed and both were one.  The shock of the blade only lasts so long though and the present does come back regardless of what one does.  The clouds begin to roll back into Sebastian's eyes.  The fog of denial roiling back up.  The coldness seeped back to his heart.  He was alone and cut off from love once more.  True it was only his his heart and mind, but he didn't know how to fight it either.  "SHIT!"  was all he could say.  He pulled away from Kirsten and stormed from the room.  He left his mess as it was.  Including her heated up, but not eaten (save a bite) lunch for tomorrow.  Kirsten is left holding a bloodied towel and no more thank you than she had gathered from his eyes minutes before.