I was thinking of how to make D&D encourage more emotional growth and vulnerability. Initial thoughts:

You have a handful of aspects (ala Fate) and earn Inspiration when they cause you trouble.

Inspiration cap of 2 instead of 1.

Once per session, if someone emotionally comforts someone else and they open up, the party gets a chunk of XP and either of those PCs can spend inspiration to instantly give the party the benefits of a short rest.

I'm thinking also of a way for everyone to chip in an inspiration to give the team the benefit of a long rest but I'm not sure what the right trigger is