*****PLEASE TELL ME WHAT YOU THINK OF THIS?ADULTS ONLY?

HI 25 yr old female here. In the last 2 days or so i have previously asked a few questions about my relationship and for advice. I found my responses very helpful..so thank you for everyone's advice. Long story short ive been with my bf for 3 years. We love eachother very much and have been through alot together. But i always let my feelings and emotions get the best of me. Everytime we he got mad, pissed off, or frustrated he would blow up on me, call me nasty names, and say aweful things to me. When he would see that i would leave or get really upset, he would apologize for it and say stop being such a big baby and over dramatizing everything they were just words and i didnt mean any of it i was just mad, i know it was wrong of me and im sorry. ***Well he's been saying it for three years and nothing has ever changed...he usually does is once or twice a week. His excuse was...that im a nagging lil B*tch and i derseve it...cuz i provoked his actions. I lost count of how many times he got reallly angry and has knocked me down on the bed, choked me, even pulled my hair a few times. But i always went back cuz im in love with him and very attached. Well last week he blew up on me and said some nasty stuff...so i left. He called me and said he was sorry...but 3 days ago...i said i had enough and im done hearing his apologies...he got all mad as usuall....and said...your a stupid skank, i used you, you nothing but a *** bucket, your a stupid , nagging b*tch, ect...ect.... im used to the way he talks when he gets mad...so instead of acting like it bothered me....i just shot comments right back and told him he ewas dead to me. keep in mind im 25 and he's 27...and i think the way he talks and acts is really immuture but i was just trying to act like he was acting to piss him off. anyways...3 years...down the drain...he also said im a big baby...and a loser...and no one is ever gone want me...ect. My question is...i know all this happened cuz he didnt like what i had to say...but do you think he reallly meant what he said..about using me...or do you think he just said that cuz he was angry??? not that it really matters...but ive been crying for days when i know i shouldnt....just really confused on what to do...he only acts like that when he's mad...toher than that he always says he s so in love with me....and wants to marry me. what do you think i should do.??