Any divorced mommy's??

My daughter is 2 and just spent 4 days with her father well he lives with his grandparents and sleeps on a queen bed in a cubby off the living room I assumed that they would set her up a bed in his sisters room for while she was there... Well nope, she slept in the bed with him the whole time she was gone... Now she is home back to her bed... Y'all she is screaming because she wants to sleep in my bed with me... What do I do?? I'm pretty furious with him right about now but she can not sleep with me!! I despise Co-sleeping at any age!! She has been in bed for an hour and it has been on and off screaming fits of 'I want you bed mommy' how do I get her back to her bed???