Yamada. ... You're on vacation. Your girl friend has a room to herself, Yamada. Yamada, your on vacation and your girlfriend has a private room.
Forget the fireworks, girl, arrange a sleepover.
To be clear, Yamada, that does not mean you should just sleep when you go over.
The senpai seemed like she was trying to play wing-girl throughout this chapter, but she'll need a bigger clue-by-four if she wants to make a dent in our protagonists.