This was an excellent and well written story. The meaning behind the scar brings so many possibilities. It could be harmless or the curse was not fully left deflected, or that the curse was made by a certain Slytherin.
Severus is so crafty, the right word and mannerism directed to anyone and they fall for his "charms." And I felt so deeply for Harry, he so in love with Severus who he considers to be passionate and when Harry defined Severus gaze "As if he were laughing at the world" made me shiver also. And the ending.......very interesting.