How can i keep himm=( its long i know but read all and hellp pleaseee!!!?

ok i have been with this boy for 1 year an almost 5 months. we have had allot of drama bc his dad wanted us to break up bc of his to come job he is 3 years older but we never let that change anything. he has had so much going on an he is always busy an stressed i feel it has changed him now he is pissy an not always happy or talking in the phone and i feel like he dosent care but he say he does an its amazing when im with him. but i have been feeling neglected an alone an i just really miss him so i have been bitchy to him cuz im upsett an he gets mad about it he used to spend forever trying to make it up to me now he is differant. i dont feel special any more.... so the point i feel like im loseing himm what am i doing wrong an how can i fix it?? pleaz hellpp