He does very much appreciate her reassuring him, cause he is internally freaking out just a tiny bit. But he's mostly just trying to be something solid she can hold onto, and hold onto her a bit to steady her.

"Alright," he answers, a bit nervous, but ready to help her sit down. "You wanna pop by the bathroom while we're up and about?" he suggests. Especially if she doesn't want to be carted around while they have guests.