A scene from “Unfinished Business”

Aemond: [pulling Helaena roughly by the arm] They have defiled our birthright, made commoners into dragonlords! It is a sin and must be punished!

Alicent: May I remind you your sister is still the queen?

Aemond: As you were once! And you see now what is the consequence of your weakness! We are in peril today more than yesterday!

Alicent: Was it peril that moved you to burn the town of Sharp Point? Peril or basest fury at your own humiliation? [Pulls Helaena away] You wish to rule the Seven Kingdoms, but you rain ruin and death upon its smallfolk when you've been insulted because it makes you feel strong, and now you seek to corrupt your sister, of all our line, the gentlest and most deserving of your protection.

Aemond: And who will protect her if she cannot protect herself?

Alicent: And who will she be if her mind is broken?

Aemond: 'Tis no longer our rule that is threatened, our very lives! Would you not have us prevail?

Alicent: Not like this. Not like this!