E.B.
Typically, I think you're right and they go to Daddy but maybe she's just jealous and wants you back. Get Daddy to take her somewhere they can do some great bonding. Make sure it's a place they can share alot of new discoveries, an amusement park, a children's museum. I'd have them do one per weekend until this turns around. While they are at the house with you, she'll be likely to cling so get her out of the house where Daddy is her "safe place". Congrats on your new baby!!!! :)