I was feeling like the jokes were getting a bit tired already in this ep. That's why I'm happy the next ep apparently will again take place elsewhere than the club room. That should bring some freshness onto the table again. And not that I'd mind the fanservice.

But yeah, I'm still liking Sena the most. She hasn't shown any such pure wickedness that oozes out of Yozora. She's just a little foolish and tries to mask her ignorance with fake pride. But when the reality hits, she's running quickly to Kodaka, like you said.