Elsa's not sure why she agreed to this. It could be because she's still riding the high of being pregnant, but that's not the main reason.
She's lonely.
She's never had many friends, and the only people she sees regularly are six.
But now she's living with an intelligent woman she doesn't talk to because of Hans'. That's... not really fair on either of them.
After three weeks of observation (has it only been three?), Elsa's confident she's got Anna sussed out.
The blond boy with her is definitely new.