To sum up my Fire Emblem Three Houses experience thus far: not only is it possible to plan your combat strategies based on which two characters you think should kiss, in the beginning of the game you are in fact encouraged to do so.

Okay, that's amazing. I'm so happy to learn that the relationship and combat mechanics are related! What an excellent game!

Meanwhile, I've just looked up Cassie Cage, and she looks excellently badass. Good luck with your jumpsuit sewing, which does sound difficult but rewarding. I'm cheering for you!