I wonder what his reaction would be if you had gone on a pre Christmas girls night out, gone into a male strip show (though of course women cant do that because static, regular male strip clubs don't exist, nor do private dances for the most part (the one I went to in Streatham was the exception, buf say you did.. ), it was a male strip show that says online "full nudity", there was the opportunity to pay the strippers for one on one "dances", you did so, twice fur yourself and paid for them for your mates too, you bought rounds of drinks too. Your excuse for this was that your mate had bought a house and you felt inadequate/inferior.
You used hundreds of pounds from a joint savings account intended for a house deposit to do all this with consulting him. You said you list another hundred of so of this money on the way home. You also haven't accounted for a couple of hours of time at the end of the night.
During the subsequent arguments, you then took hundreds more out of the joint savings account and donated it to a shelter without consulting him.
You've told him the other guys fiancé and wife gave zero problem with this and he's weird
I'm sure he's be all chilled and happy, right. I'm sure he's have a v high opinion of you. I'm sure he'd think you had the perfect right to do that with family money, just before Christmas. I'm sure he'd have no problem with your interaction with the male strippers. No problem with you "losing" a hundred of lord of family money. No problem with you maintaing that the guys didn't get their dicks out while everything else says they do.
You'd be being called all the names of the day, being called a slapper, a bad mother, a bitch .. you'd have had no right to do that with the money etc etc. At home and to his family.
He and his mates have total.and utter double standards for tgen and their partners, for men and women; that's fundamental. They think they're entitled to that behaviour as compensation/offset to the tremendous favour they've done a woman by committing and paying towards maintaing her and their kids.