Tired of crying need advice

My Fiance and I have been together for 3+ years and in July my parents blew up at me and told me they didnt want me to marry hima nd told me I had to choose between them and him and when I wouldnt they disowned me and severed all ties with me. This was a huge blow to my whole being and foundation and so I have been very emotional about the whole situation. I used to see my parents several times a week. Well I was taking an anti depressant and recently stopped so my emotions have been running rampant. He says my mood flips and I know it does but his mood has been up and down also. His phone broke yesterday and when he used mine he deleted the number from the call log then mysteriously had to leave right after he got off the phone. He told me this morning he went to his friends house and lied to me about having to go back to work. It breaks my heart that he lied to me but he told me he'd rather lie than deal with me. I love him very much and want to marry him and I wish our relaionship could go back to the way it was when we first got together I dont know how to or what to do. I feel like we are drifting apart and I need help he really is my everything and I really really love him. This brief glimpse of our relationship doesnt really show what we've been through so just to give the biggest things 3wks after we got engaged his dad suddenly passed he took a lot of his grief out on me for the next year and a half my parents reamed me for putting up with it we almost broke up I have spent the majority of my nights this year in tears.