P.
Hi C.,
Congratulations on your new baby! It sounds like you are doing all of the right things with your older one, with both you and daddy giving her one-on-one time. Many, if not most, older sibs will regress to an earlier stage of development after an infant comes on the scene. I know this probably feels like an incredibly long week for you, and it's been a really long one for your daughter too, since she is probably feeling totally disrupted, confused, and still wondering why her perfect world has been turned upside down by this new baby that she thinks has stolen her mommy. I hate to say it, but this could easily go on for months as she adjusts to her new family. It's only been a week, and it will take time for her to believe that you and your husband really do still love and value her the way you always have. My best advice would be to give her lots of time, avoid struggling with her over things that are not an emergency or life-threatening, and give her lots of explicit reassurance, ("Mommy and daddy love you so much!"). Also, try to involve her with the baby as much as you can, like having her bring you a diaper, getting the baby's favorite toy, etc., and give her lots of reinforcement for that--("You are such a great big sister!" "You help mommy so much!"). She needs time to be mad at you for "betraying" her with this other baby, so let her be mad and show her that even though she's hurt and angry, you will still love her no matter what. She WILL adjust, and the less you struggle against her need to be defiant right now, the less angry and worn out you will be. I hope you are getting some sleep!
P.