Okay stop, look, he uses ✨the tone✨ when he talks to ladies (or when he's trying to persuade them with something).
And as we've seen in previous movies, it usually works. But Kitty's like, "Nope. I've lived with you long enough to be immune to that".
And that's because she HAS been subjected to this in the past. And I bet many times more. Payback, baby. But I also love it cuz I'll take is as a testament to how much their relationship has developed. Any cat would swoon at that, seeing as how Puss IS attractive. Most of the cats he's been with we're very open about that, Kitty probably did internally fangirl a bit too (she was just subtle about it compared to Puss).
But she had indulged his ego more than enough and now she's all "fuck that, u ugly... but you're still my man"