Absolutely adore them.
Their whole meet-cute being Kali mistakenly kidnapping him because she thought he was someone else and then him sticking around because he got into their cause. Just imagine Kali's utter embarrassment when she learns he'll be working with them from now on. She's mortified. She swiped him up off the street by sheer accident and now she has to face him every day.
Then the gradual build-up of trust, getting to know each other. Nobleman who's never known need a day in his life giving all his wealth to the cause that Kali who comes from nothing wants to believe in so much. The little ways they're breaking down each others' walls from the different ways they grew up until something finally gives.
I like to think that when Gebura and Chesed recall their past lives in the Library, they might look back on those days a little bittersweetly. Knowing how much they grew closer but also seeing the flaws in how they used to be together. I think they'd still think on those times fondly, though.