I also think Ferdinand is pretty confused about what Rozemyne is thinking. There’s a hint that he suspects she is choosing him above all others, but when he asks in the indirect noble fashion she refuses to answer. She’s got the royal family amulet. He’s having trouble making sense of this and when he can’t figure that out his trust level plummets.

This is complicated by the fact that Rozemyne does not herself really seem to want to answer these questions, not even to herself.

It’s only when he decides to put himself back in the familiar role of her guardian that he can tease out some of the answers about what she doesn’t want, and from there I suspect he’s putting some pieces together about what she might want and how to get her there. Like that he’s talked her out of going through with any integration into the Royal Family.

If they do ship in the end, I suspect it will be a relationship of friends and equals.