I dont know what to do anymore...?

well this will be a little long sorry.. so ive been going out with my boyfriend now for 2 years the thing is that lately we've had a lot of problems. we argue a lot, we fight a lot, & well things are just not the same. we love each other a lot. but the thing is that every time we fight he kinda blames it on me. & he gets mad at everything. like if he calls me & i miss one of his calls or two he gets really mad. but when i call him he never answers! i also send him like thousands of text saying like "helloo answer me!" but he never does. & he'll call back and be like "hi my love my sweety" since he know im mad. other things he does is he hangs up on me. or he ignores my calls.. but if i did that he wouldnt even try to call me back.. & i do. i dont know what to do... ive gotten really tired.. he makes me cry a lot.. makes me feel really sad and bad... its like he does all those things.. and he dosnt think hes doing bad.. but if i do it... he gets really mad & is almost like breaking up with me... i dont know what else to do.. good advices please.. or anybody in that situation..