You should never tell a psychopath they are a psychopath. It upsets them.
Gunn: Come... He's been killing my fish, trespassing on my shores.
Villanelle: What are you going to do to him?
Gunn: Fillet him.
Gunn: I'm going on a hunt.
Villanelle: I'm coming with you.
Gunn: Still warm.
Villanelle: How long will it take?
Gunn: Maybe ten minutes. Maybe ten hours. This way.
Gunn: What can you see?
Villanelle: Hairy pigs.
Gunn: Wild boars.
Villanelle: Is that what you shot me with?
Gunn: Shhh.
Villanelle: Shhh.
Gunn: There's something better over here, come.
Gunn: Worms?
Villanelle: Worms?
Gunn: They are nutritious.
Villanelle: I'm okay. Do you get lonely here?
Gunn: I've got my animals. Animals are good company. Humans are... dreadful.
Villanelle: That's fair.
Gunn: Drink? It's Moonshine.
Villanelle: Why didn't you kill Helene yourself?
Gunn: I wanted to see what you would do.
Villanelle: No. Why did you want her dead?
Gunn: When I was young, my entire village in France was wiped out by a poisoned water source. My parents died. So, I left. I went to Paris. And I longed for the country again. Animals, trees. Freedom. Helene offered me that. And gave me this island.
Villanelle: What, you got this island?
Gunn: Oh, yes. But I realised not long ago that Helene was just using me.
Villanelle: Hmm... Such a bitch, she was just holding us back.
Gunn: Big bitch.
Villanelle: What poisoned the water in your village?
Gunn: About three gallons of sodium cyanide.
Villanelle: Wow. Nice.
Villanelle: Is that my boat?
Gunn: Needed firewood.
Villanelle: Where are my things?
Gunn: In my cabin. You sleep with me now. This is your new home, Villanelle.
Villanelle: So, what happens to you, now that Helene's dead?
Gunn: I'm working for The Twelve, not Helene.
Villanelle: I'm leaving.
Gunn: Why?
Villanelle: I'm done with them. I'm going to kill as many of them as I can. They've got you in a cage. You just can't see it.
Gunn: I value my freedom here above all else and The Twelve grant me that.
Villanelle: It comes at a price.
Gunn: It's a small price.
Villanelle: Okay. I'm going to need my stuff.
Gunn: If you threaten my way of life, Villanelle, I will rip you apart. Slowly. Your choice.
Villanelle: If you can catch me. Ha ha!
Gunn: Oh, no... Here we go.