Spending time with you is the craziest and most interesting thing ever, Kuromine-san.

Is that a complement?

It is.

...but

someday,

I hope you'll be able to find something you think is beautiful again.

...Yeah.

Hey,

That looks pretty good after all. Let me have a bite.

I'll decide what is clean.Chiharu is actually saying 綺麗 (beautiful) like she has been throughout the comic, but here, she's replying to Ruka's use of 清潔 (clean). 綺麗 can also mean "clean," but it's used more for describing aesthetics rather than sanitary conditions. This is most likely a form of wordplay, but I couldn't figure out how to properly convey this in English.