Sure. [Cake isn't really on his mind right now, but he's happy to let Byleth indulge himself.]

And yeah, I do. Things here are only going to get more complicated from here on out, and you don't want Zenith running circles around you. Nor should you waste your breath getting mad at people who aren't going to listen to you anyway.

[He could say that to a lot of Meridian, but it's Byleth in particular he wants to understand the situation. He has a sharp mind -- it's just an inexperienced one that needs pointing in the right direction.]