Long story short: XH had severe manopause and left a few years ago for a younger model. Since then been trying to 'mould' her into a full on mothering role, introduced kids to her 5 weeks after leaving, referring to her as "stepmum" after six months despite not even living together
He has never ever asked to have them more and every time I ask for help due to work or other, there is an excuse. When he does decide to get involved with the children, it's largely to have a go at me.
So here is the situation: we have parents' evening tonight and he either forgot it was on or work happened - either way, he's not in town. He said she was available to go so he could get a 'full update' which I declined and said I'd be very capable of going alone and would provide him with a "full update" myself.
He has now turned around saying that she should get recognition for her "investment in the children" and he was considering applying for a "parental responsibility order" via the courts.
Children live with me full time, they have them two weekends a month and half holidays although he tends to farm them out to his parents.
This sounds insane to me - your thoughts are welcome.
Before you comment though, please note that this is not about her. I'm happy for her to build a good relationship with the kids, less happy about him outsourcing his parental duties to her bit by bit, and very unhappy about him proposing to make her some sort of legal parent