I still feel like she really deserved to hear what he really had thought about her until then, but it's probably for the best that he just went along with her, especially after the misunderstanding had been cleared up.
Tsundere and Vanilla tags always go so well together...Makes you happy just seeing them together.
Still, a girl who always gets on your case? Well, surely that's just her way of...hinting to you that she likes you, as she eventually clearly states she was making advances on him.
Also that couple having sex were quite the wingmen, eh? Sacrificing their own sex time to allow this couple to get together.
I have to say I also like how instantaneously she became super dere with him after they had such sweet, loving sex.
Great ending though. Makes me wonder about this...other couple within their group. I wonder if they'll get a story for themselves.