Sensitive morning

After breakfast this morning, Grace left the table mad at Sam because he made a joke that she didn't think was funny. When I went into her room a few minutes later, she was sitting on her bed playing with a wooden puzzle. She told me, "I'm furious at Daddy." "Really?" I said. "Yes. I'm furious at him." After a big pause she shook her head and said, "If he keeps this up...I just don't know if I can marry him." After we all started laughing at her she was his best friend again.