There's no way I'll ever get over my first love?

He was my first boyfriend, my first kiss, I lost my virginity to him. I was only 12 when we started dating and he was 15 and we dated for 2 and a half years. He lived with me. We spent everyday together and been through alot. We were engaged. But then then social services separated us because of the age difference. At first he said he would wait for me but then he started dating other girls. I started dating other guys. But we still secretly dated each other sometimes. But for the past year we haven't dated he's only snuck over to have sex with me. He now lives with his new girlfriend but he's coming over on Friday to have sex with me. I keep telling him I'm still in love with him but he just avoids the subject and talks about something else. I'll be 16 in a year and I'm going to get emancipated and try to get him back because if I don't have a life with him I have no life at all. He'll be 19 so we can get married and everything will be perfect but I don't know how do I convince him to get back with me?