Actually, it might make more sense if we post as if it already happened. By the time he got home that night, he had completely moved on, as if he knew the relationship was over. However, he wouldn't have known that unless he had spoken to Sue. Perhaps they met up after school that day, but before he went home? During the parts of our posts that include the conversation, we could just put, "[i]The Night of Sue's Graduation[/i]"