Ridiculous or rightfully upset?

I’m slightly upset with my SO and wanna get opinions about if I’m being ridiculous or not. I’m a SAHM until our baby gets a bit older and we feel better about him being in day care so we rely on my SO’s income.

It’s our LO’s first Halloween. Instead of a costume, I Prime’d him an Halloween outfit. My SO said that he’s “not made of money” so to keep it cheap and anything else needs to wait until payday. And I was fine with that. I spent less than $20 and put it on my credit card that he makes payments for. No biggie.

But then I thought. Where tf is his money going? So I checked his bank account.

He’s spent $206.25 on OnlyFans in the last month. Now I’m fine with porn, there’s tons of free porn. Especially since I’ve been having a hard time postpartum. I understand he has needs and whatnot. But you can spend that much on PORN but not our 13 week olds first Halloween? I get it’s his money but at the same time, he doesn’t want me working right now so I feel like it’s ours? Idk y’all. Am I being ridiculous being upset?