I need your help

My fiance and I have been going through a rough patch. A month ago he admitted to me that he lost $15k gambling within a few weeks. As someone planning a wedding trying to buy a house this was a big hit. We both agreed for him to exclude himself from gambling and ban himself on all online apps. We also agreed no more poker nights with his friends. Yesterday it was his friends bday and we were hanging at his house and they wanted to play poker. It was an immediate no from me in the begging. But his friends convinced me that they’ll pay for $25 buy in. I know $25 is nothing, but it’s more about the boundary that was set prior about no gambling. Eventually I was like okay fine just one buy in and that’s it. They all agreed including my fiance.

30 mins later he looses quickly. He got upset and demanded to leave even though we just got there and it was an hour drive. I was like hey we just got here not long ago just give me some time and asked him to take a seat. He immediately throws a tantrum and sits there with an attitude and look on his face not speaking. I was fed up with it so I was like ok let’s leave. We drove him (we don’t live with each other). He texted me mid drive saying “thank you for embarrassing me and disrespecting me Infront of my friends” at that point I get furious and call him because I know I never once embarrassed or disrespected him. He doesn’t answer and texted me saying he needs space because he’s angry with me. I text him a paragraph explaining why I’m upset and the we set a boundary and it’s not ok for him to go and cross that boundary now, no matter the cost of the buy in. I also tell him I need space. He tested me saying “god forbid I spend $25 to enjoy my time with my friends. Take all the time you need, matter of fact take the whole weekend”. We are supposed to be going out on a boat tomorrow with his friends it’s already all paid for. I’m not really sure what to do or where to go from here. I know I did nothing wrong. I’m so emotionally exhausted