A.D.
My 2 1/2 year old is doing the exact same thing. Last night when my husband and daugther came home I was still at work. She sat outside the house and screamed - I want my mommy, I don't like Daddy any more. She does this too if she wants something in the middle of the night (lucky him :). But if he leaves, she asks "Where did Daddy go? Is he coming back?". I am always like - you just said you didn't like him, why would he stay.
I assume this is a phase that everyone goes through. I hope for my sleep sake it changes quick!!!!