During the prolonged winter, Cirno worried about Dai-chan and so distanced herself from her.

You're better off not getting close to me...

That's a line someone with Eighth-Grader Disease would say... Eighth-Grader Disease (中二病 or chuunibyou) is a term used to describe the ridiculous behaviour of teenagers going through puberty.

I'm not listening!

Huh!?

...See, I'll be fine! I'm feeling really warm right now.

...Thanks.

Say... do you mind if we stay like this for a bit longer?

...I don't mind if it's with you.