It isn't, it's an example from experience.

[ In her frustration, she's about to storm off. She wants to keep herself composed and bury that anger down before she lets it spill out in the most ugly way. Again. ]

I meant it. Then do as you like, that won't stop me from checking in with them again. You don't need to be so bull-headed.

[ Pot and kettle, not that she's going to really acknowledge that. ]