Friggin hell. As someone currently in college studying to become a teacher, I find this "teacher's" behavior to be embarrassing, infuriating, and annoying.
Somehow this is both the healthiest and least healthy polycule I've ever seen. They're all using open communication and honestly conveying their feelings to each other with trying to make sure everyone is as happy as can be without anyone feeling left out. But they're also going about it in the...
AAAHHHHHH! She's so pretty! Why is she so pretty!?!! That grin when she says "If you don't want to, you can pay it back with money." is just so stunning!