Hi there, recently he received full custody of his 5 year old. The situation at her bio moms was bad - homeless, abusive boyfriend, drugs...

Anyway, we are working on getting her into a child therapist because of some things that have come up in the past week. Until then I was hoping that some of you might have gone through something similar? Bio mom has supervised visitation twice a week.

Things stepdaughter has said recently:

"I'm not supposed to be living with you, I'm only supposed to be living with my mommy."

"I'm not supposed to believe anything you say, because you lie to me, I'm only supposed to believe what my mommy tells me."

How do you argue with things like that? When told that we lie, and that she shouldn't be here. She's getting increasingly irritable, and is having tantrums and acting out. We are told that at visitation her mom just sits there on her cell phone and doesn't play with her. So far we haven't told her much about the situation, just that she lives with us for a while and has to visit her mommy a few times a week. She argues with us constantly about how nice things were, then turns around and tells us about mommy getting punched in the stomach.

I have no idea what I'm doing. Neither of us have been in this situation before and just keep trying to ensure her that she's safe and things are good here without pointing out too much how bad things were.

Advice?