She catches the bus home because Anna can't pick her up, using the opportunity to visit a bookstore, and get her prescription refilled. The doctor's reduced her dose, and she can feel it. But this way is better for the babies.
It's later than she would have liked, by the time she gets home. Anna's making some kind of curry, and standing in her own kitchen, Elsa feels a little lost.
She shouldn't – it's her kitchen. But... there's something about Anna standing there that shoots a pang of longing through Elsa's heart.