[And since it's Misfire she has to save face. Were it anyone else, perhaps she would have apologized and admitted she hadn't noticed, but no way she can do that with Misfire. He's not going to let her live it down]

Ah--o-of course I already knew that! I was skillfully avoiding an awkward situation in case there were people overhearing us. This is what is known as 'being tactful'. Well? Aren't I the most considerate AI you have ever known?

[There are very few times Aiba gets really nervous. Somehow, being caught with her guard down like this made it happen]