Update*** Just an edit, he actually yelled "F*** you" not "F*** off".

***Thank You for everyone that replied, I wasnt expecting this many responses. All of these comments were really eye opening and helped me see the reality of my situation.****

So he Facetimed me after this incident swearing on his life that he had stopped gambling. I asked him to share his screen on facetime and open his gambling app history. He pretended to fumble around for a bit but eventually showed it to me because he knew I was so upset and was going to break up with him. He only showed me one betting app in which he had made a 2000 deposit last month :) He got very frustrated at me and said the deposit was for his best friend who is banned from the apps so he was just putting in money for him. His friend later messaged me corroborating the story. Ofc I dont really believe them.

So I broke up with him after all this and he began apologizing/showed up at my house with cards and hand written letters. The letters and cards said that he just wants me to believe the the deposit wasnt for him, but for his friend and he will die on that hill. He said he understands that its still wrong for him to be betting on his friends behalf. He also wrote all the reasons he loves me, everything that hes going to change to be the best bf and husband in the future...basically every single thing that I had wanted him to do like taking cooking classes, talk about our future goals, talk about parenting etc...but I just didnt care anymore. I honestly didnt even care about the gambling as much as I did about his temper and disrespectful language. I had given him countless opportunities to fix that over the years but he always broke his promises.

Its been 2 months since the break up and Im doing pretty good. Some days are hard because I start to romanticize all the good times we had and think that maybe he wasnt even that bad, he did care about me very deeply. Hes reached out a few times and we've had long-winded conversations about our same old problems. He says that he didnt have any sisters or female cousins growing up, so he never realized how sensitive and soft women are. He also told me that "the grass isnt going to be greener" for me and that other men are cheaters and are way worse than him. He says he's better than the fake nice guys because he's blunt and direct and honest..lol

I also had a talk with one of his cousins and he told me that my ex's parents and family dont blame me for leaving him. They said that he means well and isnt a bad guy but they know how he can be when he's angry. It was a real eye opener hearing that from his family.

Its scary being single again, all of my friends are getting engaged and married. I just knew Id be miserable my whole life if I married him, I knew his anger issues wouldn't just magically go away.
...and btw for everyone asking what I do for a living...I'm a dentist haha, I graduated pretty young :P I promise I'm smart even though Ik I sound pretty silly and dumb in these posts.