Sorry but that's a piss poor excuse for this shitty as fuck relationship.
.
The context of the narrative, them being child PMC solider assassins allowing for them to feel differently about the concept of killing someone. Something established from day one... sure.
No, you are ignoring the context of the narrative because you don't like thing.
When you wish to talk in the context of the narrative and make the argument, fine. Until then, I can't tell you anything because you aren't listening to anything. You have your fingers in your ears yelling
" LALALLALALALALA"
Every time someone points out the story, and how your criticisms, don't even make sense in context.
You don't want an argument, you want your way. And i'm not interested in that
Also you know the " people being in love trying to murder eachother... is a thing in other fiction right?"