He could see what he had just done to Kirsten.  It bothered Sebastian.  He grabs her car keys from the table, something he had never done before either.  He bolts for the door.  The door slams behind him as he thunders down the stairs.  His feet devouring the distance to the car as he fiddles with them to find the right one.  He gets the key just as he arrives at the door.  He opens the door and jumps in.  The roar of the engine is heard followed quickly by the squeal of tires.  He is away from her and from the house.  He is out of her sight and out of her range, driving like a the crazed madman he is.