Nah, even without translation this feels quite heartwarming. :)
Nevertheless, I'd love a translation if someone has time to do it.
Yeah, that! You should cut it out!*cough*Cir...cir...*fwshh...**bluuuush*Cold girl!Way of CallingAh!Actually, nevermind!!O, oh... real...ly...?Cirno-chan!Aya, you always call me "-san", and that's like, that thing! P, pudding-on-chairs...Ahh... Maybe you could call it a work-related illness...Although... it feels embarrassing, somehow, to stop using honorifics with you after all this time...A, alright! Cir...Ehhhhh~? Why?!Ah! But I'm always...
Here, Cirno remembers that she actually doesn't have anyone calling her by name without honorifics. Hence, she eventually realizes that calling the other person's name without honorifics has a very special meaning (Proof of a very close relationship)
or when they're a couple ( ͡° ͜ʖ ͡°) 'Cause I just remembered that since a long time ago, Aya hasn't been a "stranger" to me at all!You mean, treating you like a stranger?