He gets through the rest of his classes that day, somehow. They seemed to take years to go by. Even now, when he's home and getting ready time seems to go slow.
He's home and getting ready to go see her, somehow it's still two hours before he needs to leave.
Not able to take it any longer, he sends her a text "I can't wait two more hours to see you, I'm coming over now." And heads out to his car, driving to her place.