The co sleeping is just part of it.
I don't know why any grown adult would need to ask about whether or not to send their child to school or not over this, I really don't.
The hyper level of excitement over a 6-year-old child's birthday by its parent. Yes you do things for your children of course, but the excitement over it. I don't get it.
The apparent stubbornness to teach the child to sleep by herself seems in part motivated as some kind of revenge on the child's father.
Who rightly wants the child to sleep alone now.
Just because you're apparently bitter about him doesn't make that less true
In my opinion that's wrong. Wholly wrong.
What also surprises me is that you seem to expect everybody to agree that it is right not to train your child to sleep alone in order to get one over on an ex.
No. Most people realise that the child's independence is more important than anything.
Put together it all reeks of enmeshment.
There's nothing obsessive about it at all.
In my opinion, at the age of 6 (not 6 months, that's different) this child needs to sleep alone now.
Take it or leave it.