Greta blinks in faint surprise at the question. She'd held off on joking about it because she hadn't wanted Regan to think that was an immediate concern, even setting aside the absurdity of Anne taking one of their rooms.

"I haven't asked," she replies. Hadn't even thought to ask, for that matter. It's not that she doesn't like the idea of it, but... well, this is all rather new. And while the benchmarks for what makes a normal relationship are rather different here than they were back home, she rather approves of some of the more modern notions regarding how swiftly things need be made official. Whether Anne might want to move in one day is something they can discuss (perhaps after things are ironed out with Jack); whether she ought to is, mercifully, less of a concern. "We're still figuring things out, but... I don't think we're in any hurry."

Which all feels a bit vague, but it's not as if they sat down and charted everything out. Greta purses her lips in thought, then ventures, "Would it be okay with you, if she did?" Whatever they end up eventually deciding, she doesn't want Regan to think her opinion doesn't matter.