he was sexually and emotionally abusive
he is definitely using DD and access to exert control at the moment.
He doesn't have to work weekends, he's self employed, he chose to work weekends that he was meant to have DD, he also chose to do his hobby and cancelled weekends he was meant to have her. It was entirely his choice and until he had someone to impress with his Disney dad routine he really didn't make a lot of effort to see her regularly.
Wow, what a totally non-suprising set of updates.
The thing I would focus on is the fact that it is glaringly obvious that your ex does not give a shiny shit about his daughter. So - think of it this way - putting her first - what is best?
If he cared about her welfare, he would
-not be abusing you
-want to be with her on contact and in her life as much as possible and not choose to work when he doesn't need to on contact days
-care about things like not upsetting her by leaving her with a virtual stranger all day or by upsettign her by cancelling contact etc.
He doesn't care about her.
So - thinking ahead, it follows that if you prioritise contact (in the way that a normal parent would as it is good for the child), then what she is actually going to get is:
- being used as a pawn for him to hurt you
- not getting actual contact, because he isn't interested in spending time with her - rather, he'll just start lying about his work schedule and babysitting plans
- eventually, her very possibly being dropped when either a girlfriend wants a man without a child in tow OR he has a baby with someone else.
I think if you frame it like this in your head you will more likely end up fighting for what will eventually be your DD's best interests. The thing is how to work it, because if he's like this, then yes he will fight back NOT for the sake of your DD but in order to hurt you.
(Men like this are the lowest of the low, btw).
I think in the first instance then I would be inclined to refuse to let her go if he was working, and keep repeating that it's not in her best interests to go and be babysat, she dislikes it, you would rather her stay enthusiastic about contact, you would rather her like the new GF and not associate her with being bored and ignored by her dad. Reapeatedly ask why he is choosing to work on contact weekends, and say that if he can't sort it then please - go to court and we can get an access schedule agreed which allows him to get real contact even if it means him having her on some weekdays.
Turn it into 'my aim is for you to have more contact' and you may see him simply back off (because he doesn't actually want more contact or much contact at all if he can help it ). Point out sweetly that if he is having trouble being there for weekend contact then you are completely up for having a court schedule a better routine to give him better quality time - make sure you make the point that court will be concerned that access clearly isn't working for him if he's not there and that THEY will want to see that he gets the opportunity to spend quality time with his DD. This is a subtle way of letting him know that court will sid ewith you - they also won't want to see access where the child is actually not getting contact.
But in the long term - let him disappear, I'd say. He doesn't care about your DD. He will likely have other children and move on and ultimately she will probably be better off once he does :(