Chidi and Eleanor were more than just a good romance in The Good Place — their unlikely pairing was essential for the show's themes. Though they were supposed to torture each other for all eternity, they ended up helping one another improve ethically, which ultimately extended to the rest of the group. The Good Place is known for challenging the standard expectations of the afterlife, the concept of human souls, and the idea that humans are morally black and white. Ultimately, each of these topics was supported by the connection between Eleanor and Chidi.

https://screenrant.com/good-place-chidi-eleanor-romance-important-reasons/