She was definitely being the straight-man in this little routine, between Nightwing's general nature and Bobbi's casual snark, but Maria was used to that. It probably came part and parcel of being the Director of SHIELD, right along with dealing with the powers that were above them and making the hard calls for the people below them.
And deciding who to trust, when. She read the note twice, face still from long experience. It took her a bit of work to interpret his interesting shorthand, but she got the gist. "All this because you wanted cake," she said in the same long-suffering tones, as if that was the only thing he'd said.
She glanced over at Morse at the comment. Snakes on the plane meant that she was going to have to think very carefully who she brought into her confidence, and how. Morse was a good agent, and she would have said trustwrorthy, under most circumstances. But there was always enough room for a doubt. "You were on your way out," she said with a nod to Bobbi's lab coat. "Unless you want to keep entertaining him with sticks, you can head on home."