My step daughter (nearly 13) has been going through some problems with her mental health this year, problems with kids in secondary school, self-esteem, depression, anxiety and self-harm.
We have done all we can to help, support and get her the support and help she needs. I've been on constant contact with the school, getting them to adapt her lessons, seating, time out pass, taking her to the doctor's, organising counselling (for which there's a 3 month waitlist for 2 counselling organisation), getting her outside doing things she enjoys to get her out of her dark room on her phone. Making sure she eats properly, regularly, gets decent sleep etc.
Myself and my partner have been struggling since last year when we suffered a miscarriage but have been much better in the last few months. There have been times when our daughter has heard us arguing but for the most part we haven't done so in front of them or in earshot.
She previously got upset upon hearing us argue and asked her Dad if I could go. (We've been together for 4 years, living together for 3 and engaged for 2).
Recently, we had a disagreement quietly in the privacy of our own bedroom but apparently she heard us, she then proceeded to say she wanted to go to her mother's for a few days (they live with myself and their Dad full time but stay at their mother's most weekends) and since she has been there she barely messages us, short off replies when we message her, didn't want to join the rest of the family for swimming which is a weekly family activity and she loves.
It's extremely upsetting and hurtful to us both, especially her Dad who does on her and she adores him, they've always been best friends and she has always been his shadow.
The children's mother has always been a manipulative person, she cheated on my partner several times, took his money, lazy, never working never contributing to the household in any way and never been bothered about or wanted the kids, especially before I was around. Now obviously she plays the role of fun weekend parent, allowing the kids to do what they want when they want, eat what they want, stay up til whatever time, no teeth brushing etc.
This has obviously been put into overdrive with our daughter since she has been staying there.
Our daughter obviously doesn't know anything about the actions and behaviour of her mother in the past, though our daughter has told me things about her experience when she was little such as having to care for herself and her younger brother because Dad was at work and mother was "upstairs on her phone".
I should also add that all 3 children are happy, talkative and loving with and around us but always come back off, quiet and distant with us after they've been with their mother.
What do we do? I don't know what to do in this situation. It's awful to see how it's hurting my fiancé, his children are his world.
Has anyone experienced this or similar?
We are at our wit's end.