Bratty princess + older knight

You are her knight. You've basically been her sworn protector since she was a baby.
Aveline is a menace, but she's your menace. Your responsibility to keep her protected and indulge her eccentric ways. Just uh...make sure she never gets bored.

----

This one is meant to be platonic but obviously you're free to do whatever.
1st scenario will be open ended where you can steer the story any way you'd like while the 2nd will be more angsty.
(Just some options) One time I made her go to her medical check-up which she had been avoiding for months. In another route I took her down to the market and got into hijinks.

The plot of intro option 2 is basically that the queen and king want Aveline to pick a new (not old) knight. They know you've been getting up there in years and may want to retire but Aveline is having none of it!