Question from a movie "Captain America: Civil War"
Steve and Tony are talking in the small room, Tony trying to convince Steve to sign the Accords.
Steve Rogers: Wanda? What about Wanda?
Tony Stark: She's fine. She's confined to the compound, currently. Vision's keeping her company.
Steve Rogers: Oh God, Tony! Every time. Every time I think you see things the right way...
Tony Stark: What? It's a 100 acres with a lap pool. It's got a screening room. There's worse ways to protect people.
Steve Rogers: Protection? Is that how you see this? This is protection? It's internment, Tony.
Tony Stark: She's not a US citizen.
Steve Rogers: Oh, come on, Tony.
Tony Stark: And they don't grant visas to weapons of mass destruction.
Steve Rogers: She's a kid!
Tony Stark: GIVE ME A BREAK! I'm doing what has to be done... to stave off something worse.
Steve Rogers: You keep telling yourself that. Hate to break up the set.
Steve puts the pen down on the table and leave.
What does Steve mean in the last line by "hate to break up the set"?
Sorry it's too long, but I think you need a lot of context for this.