Dd1 is 4 and adores dd2, who is 11 months. Dd1 has just been to grandma's for 3 nights. Dd1 can be quite over-exuberant with the baby. We are constantly telling her to leave her alone. Still, I was surprised to find that dd2 didn't appear to miss dd1 at all, and seemed to enjoy the space and peace. Since dd1 has come back today and been unusually affectionate with me (usually a daddy's girl) dd2 has been superclingy and seemingly v jealous of dd1. Is this normal at this age?