Sadly my husband was arrested after attempting to kill me - he was pulled off me by a stranger. He is a senior UK civil servant.
My husband also spent 30k of savings made for the children. Not in same league as OP but that was a huge amount of the total family assets.
The judge allowed a certain allowance for the behaviour, but only a little. Got 63% of family assets, basically the family home.
It felt so so cruel. He beat me up, tried to kill me, spent the kids' money, then left me and committed adultery, then for over a year from UK civil service emails and in work time harassed me with awful awful stuff.
Despite all this, really it made little difference. The judge added back what he admitted he spent but he didn't add back the lost interest. He also didn't consider the savings left I increased in value by 20% in the time between first hearing and final hearing. All he could do was to award me a higher percentage of total assets, 63% rather than 50% which would have meant the family home being sold.
So the criminal now lives in a house 50% bigger than his children live in, as he is a kept man living rent free whilst another man is forced to pay the mortgage on that house! Absolute craziness.
In the end, I just got through the injustice of having to give him anything by thinking who is worse off than me and knowing that the kids needed me emotionally and needed a single parent who loves them and tries her best than someone who is in arrears 10000s in unpaid maintenance.
I guess we are lucky, we kept our home. That mattered so much. To have a roof. I'm now heavily in debt for first time in my life, as I did have to pay quite a bit to give that thing his 37%.
Try and think about what you have, rather than what you haven't. You have your life, your child. It's hard to come to terms with it when violence comes into a split. So so hard. It doesn't matter how rich or poor you are, it's the same feelings.