I don't really know how to start this topic as its all very confusing. I am stepmother to a 6 year old girl. When I met her dad he had full custody of both his children(the other is 4) their mother after having their youngest started taking drugs and drinking. It turned out that she has border line psychofrenic(sorry for the spelling) anyway she did not want the children and custody was given to their dad. After we were together a year we moved in together and because our 6 year old at the time was only 2 1/2 she thought I was her mum and because her biological mother did not want anything to do with them we just let them believe it. When she was about 3 the mother who aparently had cleaned herself up, wanted the children back but the court agreed that she was to only have access on saturdays. We explained this to the children and said that although I was not their biological mother they could call me mum or my real name whatever makes them happy. But their biological mother was having non of this. She constantly tells the children they are not allowed to call me mum and once even went as far as saying I was their babysitter.
For the last year our 6 year old has started telling lies. At first it was only small ones but now they are getting worse. Most recently she said that she nearly drowned while at swimming with her mother because she was left alone in the pool. When we confronted the mother she knew nothing about it so when we asked our daughter it turned out that she had made the whole thing up and does not know why.
I am at my witts end now and feel maybe she needs some emotional counselling or something I'm sure she has issues in relation to her mother.
The mother only sees the children on a Saturday as I said and makes no effort to communicate with them any other day of the week.
Any advice would greatly be appreciated