My spouse has a gambling problem

Not mom related but spouse… my other half has an online gambling problem. I’m the past few days he’s spent $500! In the past 2 1/2 months he’s spent $4000!!! I’m in tears and don’t know what to do! We can’t afford it! I’m suppose to be getting a new car which would be nearly an extra $150 a month on top of what I’m paying now. He’s driving us broke! And he’s extremely confrontational, he does NOTHING wrong and only sees the wrong that I do. Any time I voice my concern it always becomes a fight and comes back on me! I’m lost and I feel sick to my stomach!