Arnold Friend was saying from the door, "That's a good girl. Put the phone back."She kicked the phone away from her."No, honey. Pick it up. Put it back right."She picked it up and put it back. The dial tone stopped."That's a good girl. Now, you come outside.
He tells Connie to put the phone back because he wants to cut off her ways to ask for help. This reminds me of the Old Testament in Genesis, where Satan tempted Eve with gentle words and forbidden fruit. Similarly, Arnold Friend is pretending to care for her by saying “That′s a good girl”, while actually making her drop her free will.