Huh, they actually mention about the "weirdness" of their love. Kichou is just there as obligation that doesn't exist anymore, and Ikoma barely know anything about the new Nobunaga.
I don't know if they'll address it further, but just seeing it mention is already nice.
It really is amazing how humans have grown since the 1600s. That girl is 29 but as short as a modern day middle schooler. It's pretty fucking jarring tbh