"But they need a father/mother, we can't divorce!" "We can't financially separate!" You will INFINITELY make your children loathe you, cut off contact with you as soon as they get the opportunity, give them a whole host of mental health issues and trauma that will take years to work through and get rid of and possibly (worst of all) make them continue the cycle of toxicity that you perpetuated. They didn't ask to be born into your shitty environment, it's no longer about you or the fact you can't regulate your emotions, it's about the living being(s) that you brought into this world that deserve so much better than what you provide.
It's not hard to talk like civilized human beings and not some primitive troglodytes about every little thing. If you do argue constantly and you can't act like mature adults, don't put your kids through the years worth of trauma and emotional abuse you inflict upon them by staying together and acting like everything is fine.