Dating someone my parents don’t like

When I was 12 a guy named Callum 17 started working for my mom he then became friends with my cousin when I was 14 my friends some how ended up hanging abt with his mates and that’s how I started speaking to him we didn’t talk much bc my cousin is very over protective but he ended up quitting the job with my mom and a few months later his ex girlfriend started on me and Callum and my cousin sorted her out for me some how me and him started talking nothing Werid he then found out I had a crush on him while he was working for my mom and teased me for it when I turned 15 I was supposed go out with my mates and Callum would be there my best mate at the time though it was weird that me and my other mates would hang out with older guys and she told my teacher my teacher ofc rang the poilce and told my mom the police took my phone cause I wouldn’t tell them my cousin went and beat him up when I was 17 one of my mates started dating him and we spoke every now and then my mom didn’t like it when they broke up I had also broke up with my boyfriend and a few months later started speaking to him again he kept asking to meet but I would get scared and cancel and then I finally met him after 6 years he wants me to be his gf but my family don’t like him and time they hear his name they freak out I’m now 19 and he’s 24 we’ve been talking properly for 2 years what do I do