User blog:Pastelpill/Hard life situation

This title is a bit of a clickbait because it isn't about me, but my friend. I need yor advice.

My friend's parents are divorced, and she is with both her mother and father. She is two weeks there, two weeks there. When they were getting divorced, both my friend and her sister wanted tl stay with their mother. Also my friend hates her father. But somehow it ended like this, and she is convinced her father was a cause of that.

Timeskip few years. Her relationship with her father gets worse and worse to the point when she thinks about running away to her mother. That happened less that a month ago I believe. We met today in a bus to school and we talked a bit, and then we went to school when me and my other friend were asked by her to go on the school toilets so she can tell us something. There she said that she and her sister went on some dancing practice or something and while they had time they went to cuddle their cats, Mia and Ella. Then she started crying so I couldn't really hear what she was saying, something among the lines that. Mia had blood on her nose and that father took her away and she was gone, and when she and her sister asked he said he gave Mia back to his friend from who they had the cats from. However my friend thinks he killed her and hid her body, and her sister agrees.

I just sat there, head in my hands thinking what to do while my friends were hugging. She then went to say that her father can do anything, even go as far as kill pets, even his own kids. She then said she believes her father abused the cats because he was sick of them.

I'm thinking about telling the school psychologist, but I really don't know. Any advice please?