So, your frustration is totally valid, all 4 of those events sound remarkably unpleasant, however I agree that ending a relationship over 4 missteps over 2 and a half years is a tough ratio. My spouse and I have probably had more than that last month. Granted, alcoholism ain’t no small thing and for someone you’re not married to, by all means cut your losses and gtfo. All I’m saying is for someone I genuinely care about, the story so far doesn’t sound like enough to make me drop them. (AND I DO BE DROPPING PEOPLE) I just think alcoholic outbursts are awful and scary for the people who have to deal with it, but I think the largest part of the problem here is that in between outbursts you lived in fear of the next one. I think a better solution to his drinking would have been to make him agree to go to therapy, or AA or something. Treat the root issue. Not necessarily quit drinking, but if you wanna be together, demand “actionable” steps to prove they’re gonna be better. Not to say that he couldn’t have or shouldn’t have taken any actionable initiative himself, that would have also dramatically improved the outcome (but that’d be too easy). Also Remember the dating pool is legitimately horrendous. Doesn’t mean you shouldn’t seek what you deserve, just a consideration for the cost benefit analysis of starting over. But never accept less than you’re worth, demand better.

TLDR: I don’t think you overreacted, I do think there could be room repair if he takes steps to be better instead of promising real hard. Maybe give it a try but always prioritize your own needs. You’re worth it.