How does Astrid react when Nicholas shows up on her doorstep one morning with Max?

Astrid opens the door of her home and finds Nicholas standing there with Max in his arms. Astrid allows him in, reaches for the baby and is rebuffed. Nicholas explains that he has come here because he feels he has no other choice. Nicholas has been unable to find reliable childcare, and he must return to the hospital that morning. Nicholas puts Max on the floor and asks his mother if she is busy. Astrid, who has a deadline on a book that has already passed, tells him she has nothing at all to do that day.