Divorce settlement.. Am I being fair here?

[mininmaxi]

I am a single parent with three teens. I am in Ireland and this is relevant because if theirs level fees and medical bills.
We pay for GP care here and unless you have private health insurance your wait for basic care and operations not to mention a consultant appointment, can be years.
Uni costs e13k per year approx. Orthodontics e5 k and gp visit plus antibiotics/ pain related e100.
That's all for context .

My husband pays the mortgage on the house I am living in. Kids don't see him.
Thats730E per month.
He als pays e50 per week most weeks.
He is meant to pay half ed, med, dental but hasnt in four years.
I have a decent pension and a quarter share in an inherited home.
I received two substantial inheritances which went straight into the family pot.

One teen in uni, two at second level. He's refusing to pay any Ed costs so I've taken
out a loan for e13k for the uni student .
Then the two teens have special needs and need alot private therapiesbut receive DCA for them.
He wants50% of house in lieu of pension or share of house which is fine but I Do not trust him to continue maintenance.
What should I ask for ? What about third level?
I have a well paying job but of course the equivalent of e70 per week per child doesn't touch the sides of half of their expenses as any parent of teens knows.

He is an emotionally absent dad who takes much more than he gives. Anything he gets is money taken away from your children .
I would treat any negotiation with this in mind. You care for his kids, emotionally, financially, physically. Your inheritances are nothing to do with him.
Get angry and don’t give an inch.

Thanks . He has a cash in hand business and manages a few holidays per year and plenty of weekends away with his girlfriends.
He puts very little through his banks accounts so the judge will think he has very little disposable.

Other than showing the court evidence of his many holidays ie through his social media I don’t know how you can prove he’s benefiting disproportionately to a cash in hand business ? Would hiring an investigator cost more than the benefits ?
He sounds like you and your family are better off without him.
But I still would push for him to pay the medical expenses etc he is avoiding