So...not so evil Flan after all? Or will the translation prove me wrong?

No evil Flandre, it seems. Or she just has short attention span, since she's still pretty sinister in the first panel, right up 'till Koishi mentions Sakuya's candy.

looks like the mention of candy averted the evil Flan crisis, good job Koishi!

open eye to see what person are thinking

closed eye to reach everyone's deepest wish or fear