My wife refers to Myka as her "game wife." She's a delight.
I love the sadness of imagining how much "old" Jo would like to hear of what the protagonist pulled off and accomplished. They gave you the stone because they believed in you, and they were right to. They'd be proud, and sad they couldn't have been at your side for it.
Note - Spoilers -
You can heal the corrupted land with "new" Jo -- and in my opinion, that's my favorite ending!