Judging by other postswith Zuikaku by this artist, I'm guessing she's just a jealous/possessive type that doesn't like how Sara is getting instantly familiar with the Admiral.
Yes,That okay with you, Saratoga?I'm already one of your shipgirls, after all.Sara is right here♡But... you hardly have be so filled with concern towards me.?...okay?If that's what the girl herself is saying, then I'll do just that, Sara.Right then, I want to start you off by seeing your compatibility with Japanese planes...Sure... I got it.Certainly. It would be a mere trifle.Don't be so formal. Call me by the name 'Sara', please.