AIO my boyfriend lost 3k on online casinos

My (23F) boyfriend (26M) just called me from work 5 minutes ago to tell me he’s just lost $3k on online casinos and I lost it. We’ve been together 5 years and he has always struggled with saving money. He likes to spend every penny he gets on treats all the time and I always get so mad at him for it and he never learns. This isn’t the first time this happened. He has more than $10k debts that he’s trying to reimburse with a plan with his bank (most are because of his car). He never asks me for money just to be clear, we pay equal rent and utilities and he pays sometimes when we eat out and for groceries. He doesn’t rely on me for his normal expenses but as soon as he gets a little amount of money he goes to the spa, he goes to fancy restaurants etc.

He’s already lost money before on bets, crypto, nft, casinos, etc. He always win some cash at first but end up losing twice the amount a few days later it’s always the same story and I’m fed up. We can’t buy a house because he can’t contribute a single dollar on a down payment. He pays everything credit.

So he just called me all sad and depressed to tell me he played online casino on his lunch break and lost $3k and maybe thought I would console him but I screamed and quickly hung up on him. I know I could’ve been nicer maybe about it but it’s not normal to be 26 with this much debt and always falling for the same trap over and over again.

What should I do about this specific situation? I know he’s not gonna ask me for any money and he will just go on with his life like nothing and continue to pay everything credit but I’m sick of this happening and him not being able to save. His biggest problem is not even the damn casinos it’s really him not saving anything at all. He orders food every time and buy new PC games, etc.

PS; I don’t know if you could call him a gambler because it happened only a few times over the five years we’ve been together but every time it has been a very important amount of money. He usually stops playing after a big loss for quite some time before another bubble passes through his brain.