It's entertaining.

I get why Rikka continually drags Yuuta into her insanity, she finally found a kindred spirit when he was re-enacting his Dark Flame Master speech. I suppose what I don't quite understand is why Nibutani is attracted to him as well, hiding in the bushes to catch him as he left for the day and now joining their circle. Was that single moment at the train station in the first episode really all it took?

I get the rest of her behavior (waving at him at class or cheerleading tryouts, etc.) but she was basically stalking him in this episode. The four in the group were the only ones left at the school aside from maybe a teacher, and Nibutani was waiting in the bushes at the park across the street. I take it there some side to her than people don't suspect when they rank her the cutest in the grade.

Really enjoyed the teacher scene when Rikka tried to pretend she had a British second personality. I much prefer the crafty/clever token teacher characters to the cliché "Can't ever get a boyfriend" zany ones, as enjoyable as the latter are. They're adults, they should be able to manipulate children/teens more often than the other way around, they've seen the tricks before.