But then Fuuko would need to find an even better dango for you! And what if you find the best starfish before Fuuko finds the best dango!? Then Fuuko would need to find two dangos!! [being fulo is suffering]

Fuuko has never had the chance to go on a rollercoaster before, so you should count yourself lucky that you had the chance. [Even if it was all scary.] It sounds like you had a lot of fun there Nagisa-san!