Princess Bubblegum's paranoia (or whatever motivated her to spy on everyone all the time) has been hinted towards throughout the series, and culminates here.
It's nice to see her finally realize how unnecessary it is
Also, the way she found out implies that Cinnamon Bun has been in the fire guardian room despite being an outsider.
Shout by anzoBlockedParentSpoilers2022-05-01T03:25:33Z
PB's character development and I love that it's bc of Flame Princess