How can i make him stop?

How can i make my boyfriend stop being so mean and hurtfull? I love him so much and he has put me through so much so much and ive always stayed faithful and honest by his side . When he gets mad he just gets so obnoctius so mean. I can call him and akk i want to do is fix our problems and then he clicks he dosent even give me a chance in daylight to let him know how i feel . I have problems with my parents and hes the only one i can trust hes my everything and him acting mean to me just isnt rite. He talks crap when my parents treat me bad and defends me and goes on my side saying its not rite how they treat me and that im human and i have feeings. But he dosent recognize when he is mean and says hurtfull things it breaks my heart.Im a very emotional girl and i express my feelings crying it all out. All he knows how to do is talk talk crap. He threatens to dump me and move away and he tells me all these things you would never imagine a boy telling you. I hate to even think about him leaving me i would be so traumitized idk this is leaving me crazy :'(