Please help me? love?

ok so yes i do know it is sad when you have to come to the internet for answers but im at my lowest point. Me and this guy we've been dateing for about a year now, i love him , more than i could ever explain. He .loves me but its not one big happy thing. He is controlling and dosent trust me , i dont know what to do to gain his trust . he doesnt want me to talk to guys , like at all no word no comunation no nothing and hes calling me a lier because i broke this promise before, and i told em i would but one of his friends came up to me yesterday and asked me if i was dateing him? i said yes and walked aways that was it, but now my bf is calling m a lier and saying i broke the promise and his heart again . I dont know what to do :( I LOVE HIM! but i cant stand this! i mean really whats goiugn to happen if i say a few words to someone ,im not a cheater and im not lier but hes mad and and im just so lost. :(