It's like Diana is out of the closet, "turned into the dark side" (when she says no more lies, and they leave me no choice). While Leona is still in the closet and religious, all that light stuff and "stop this non sense Diana!"
Dang I’m so late for this even though this skin came out I never understood it. But now it feels so sad to know that they are just against each other even though they like each other
I get the old English terms, but (to me) it feels weird for a paladin or any knight to talk like that. I personally ascociate those terms with Shakespear and his time a time were knights (as we know them) weren't really a thing.