First, her mother and I split just before her first birthday. Since then, I've made as much effort as possible to see her, have her stay for the weekend etc.....
Around 18 months ago, I got involved with another woman. We were together up until very recently, and she has 2 of her own children. We live together, as it's easier on bills and rent if we stay in the same house.
I help my ex-partner look after her kids, I am the best father figure they have in, or around, their lives, as their own fathers either don't care, or moved away to get away from fatherhood.
Well...that's a bit of background story. Now for the problem.
My daughter stays with us every fortnightly weekend from Friday until Tuesday. Just recently it's changed to Monday, so she can attend an art class. Her behaviour as of late has become really bizarre.
She's stopped talking to certain people, and is, quite simply, rude. She's started pulling her hair out, and clamming up. I really don't know what to do.
Worst still, on her mum's facebook page, I'm pretty much being blamed for punishing her for "naughty" behaviour. Today, she was sent to bed. She was rude to everyone, and when I had a talk with her, she hit out at me, for the first time ever. I took her to her bed for a 5 minute timeout, to let her calm down, and when my ex-partner/housemate went to see if she was ok, she was covered in her own hair. She evens offers this hair to whoever she is, like it's a good thing.
Her (uncaracteristic) behaviour contributed to the split with my housemate, as I felt my housemate was being a little impatient with my daughter, considering I'm a father to her children 7 days a week, and one of them is about as naughty as a child can get.
What can I do?