Forget about shipping, that was an excellent season finale. Utterly depressing, but highly remarkable last scene.

Deb: What are you doing?
Dex: What needs to be done.
Deb: Are you gonna kill her?
Dex: You need to leave, I need to finish this.
Deb: Fuck, Jesus. You can’t do this.
Dex: It’s the only solution, the only way to end this.
Deb: I can’t let you through with this.
LaGuerta: Shoot him, Deb. You have to end this. Shoot him. This is not who you are. You’re a good cop, you’re a good person. You’re not like him. Put him down!
Dex: It’s true, everything she said. You’re a good person. It’s okay.