[Sam always attends this class, but he wasn't going to come today. He's not exactly feeling his best after hearing about Elena's departure, but when time came to go or skip, he found himself wanting the distraction.
A class about vampires—the very thing Elena had become—wasn't exactly ideal. But it brought up a lot of thoughts and feelings. Some from being a hunter who has fought against vampires and spared vampires. Some from the time a vampire in Marina attacked Sasha. And during the demonstration, some from watching the drinking of blood. It hasn't been that long since he stopped drinking demon blood to intensify powers he never wanted to have. The craving...isn't gone. He was visibly uncomfortable during the demonstration, but he also didn't look away. Once class was over he stays very still. He needs a minute even if he doesn't want to get caught up in conversation.
So he should definitely get caught up in conversation.]