Leesa.
I am wondering if this is part of your Dad's way of dealing with it all?
Are you able to talk to him about how you feel...ask him if he knows what she would like.
He might be finding it a hard thing to talk to her about, he might like for you or for the chaplain to talk to her if he can't.

Sending you lots of strength & comfort, you & your family are in my thoughts & prayers