I'm in a long term relationship, my girlfriend has a few children, one being a 10 year old girl. Her other siblings are 15 and 19. Her father sadly passed when she was 2/3.
She has always slept in the same bed as her mum and has had an attachment I could only describe as attached to her hip. I have asked on many occasions for the daughter to sleep in her own room in her own bed to 0 success as she will just cry continuously, to the point where the mum doesnt even want to try any more which has caused a number of arguments.
Over the last month or so it has gotten even worse, where the daughter now refuses to even go upstairs without her mum with her. As you can imagine this development has not been well received by myself.
I'm of the opinion that the daughter has some deep rooted anxiety and potentially other mental issues and is in need of therapy but I'm wondering if anyone has any ideas that may help. I do understand that I am not her parent and that I am very limited in what I can actually do.
I should also mention that i am not living in the house as it would be near on impossible to do so and so we have not even really broached the subject. This is for more reasons than just the child in question, but being able to stay over at night at times would be nice.