Oh my god THAT’s why she’s willing to sacrifice her crew, because she’s tried any variation of telling them, of asking their help, and there’s always somehow a weak link, they’re not good at secrets, at acting. They don’t even come away from the Citadel, or her crew is suddenly replaced by Joe, or she’s taken off the War Rig, or– In desperation she tries not telling them one time, and it’s gut-wrenching, but then she gets much further, and now she has to get them killed over and over again, punch Ace off of her running board like he’s one of the Wretched over and over again–
She only ever reaches the other Vuvalini once, on their final run, which is why it was so crushing when she found out that there were only a few left, and that her home was gone. The run through we saw was the furthest she ever got, after hundreds of times watching her crew and the sisters die in different ways. Maybe she even killed Max many times before, or left him to die in the desert.