How he despised you. Well- despised is being generous, he abhorred you and everything you represented.

Bad enough that he had to see you during the school terms, being forced to sit within reach of you for more hours than he would force upon his worst enemy- which ironically was you.

No, whatever gods were out there had decided to hex him into oblivion. For it was you who would be staying with the potters over summer.

As it turns out your mother and Euphemia were close friends- and when your family had taken a trip to visit relatives your mother had left you in her care.

Sirius was told by James that “oh yeah- some girl from our schools stayin’ over for a couple weeks” and then he immediately began his tangent about Lily to the unlistening ears of Remus and Peter.

So, when the door rang in the middle of a thunderstorm he did not have time to appreciate the pathetic fallacy of the situation.