Going home. Michael would be going home at some point which was how things were meant to be. He had an actual mother back in his own time, one who was probably going frantic for her son if Faith knew herself at all. God, there was a future version of her who was a mother. An actual mother with the pregnancy and the labor pains and the weirdness and an infant! One who she apparently hadn't killed by mistake if the 12 year old sitting opposite her was any indication. That Faith deserved to have her son back.
Even if she herself would miss him like crazy.
"We'll keep you safe and then figure out from there," she emphasized. "We'll make sure you get home safely." No crazy attempts to send him back unless they were completely confident it would work. She wasn't risking him, not even to save Sam\s weirdness.
And he was being weird, probably thinking too much about something. Faith squeezed his hand a moment before the school thing came up. And she looked completely confused for a long moment. "I guess maybe Sarah?" She shrugged, having dropped out of education at pretty much Michael's age herself. "She teaches some of the kids, maybe she can help?"