"Bart's Inner Child".
The quote was:
Marge: Homer, did you eat my whole pan of brownies?
Bart: Uh oh. You're in for it now, Dad.
Homer: Marge, I'm feeling a lot of shame right now.
Marge: I'm hearing that you feel a lot of shame.
Homer: And I feel that you hear my shame.
Marge: I'm feeling annoyance and frustration, but also tolerance.
Homer: I feel validated by that.
Marge: Good! I'm glad we had this talk.
Homer: Me too.