How do I leave my toxic marriage???

Please help😭 So whenever my husband and I have arguments or fights he always calls me foul names like bitch, cunt, slut whore etc. He told me if he thinks that’s how im acting that’s what he’s gonna call me. He’s gonna call it how he sees it is what he said. Well long story short today we got into an argument. I wouldn’t get out of the car when he told me because he ruined my night (it was my nephews birthday and couldn’t even spend it with him) so I wouldn’t get outta the car so he could go cruise and have a good night. I was being petty yes I know. But he called me every single name in the book, SPIT IN MY FACE, got physical, told me he wants a divorce and told me I have never and I will never make him happy.. how do I leave???😭😭😭 I don’t want to but I know if I don’t he’ll keep doing this😭😭😭