Me and my x bf still are in love..help PLEASE?

So I really really liked him when we dated for two years, but he parties and does cocaine and ecstasy and I'm a church girl and as much as we liked eachother I was always waiting for him to change and it never happened and it just turned into this stressful thing I couldn't bare so i broke up with him. He was heartbroken and moved out of state to get away from the memories. I moved on pretty quickly or atleast I blocked it out. He now moved back and through friends I ended up running into him and we thought we could be friends. we first texted then talked on the phone it just kept progressing until we couldn't even pretend we were just platonic with eachother and we both realized we like eachother still so much. And I told him to be free you know do what he wants with whatever girl get another gf anything I don't wanna hold him back when I know we can't be together, and even if we could I am 17 and my parents hate his guts so we can't date and he wants to date. so what should we do? Theres no way my parents will accept it at all and we are extremely different in our lifestyle choices and the drugs and selling drugs upsets me. It doesn't really interfer with me cause he puts it aside but still. We are trying to figure out what to do cause I don't want him to fall harder then hurt him again. it seems we can't just be friends, but honestly I don't wanna stop talking we have a really special crazy connection and I get him to reconsider his life and atleast slow down a little. It truly is a strong connection he has other oppurtunities I mean he is 19 years old sorrounded by girls yet he still won't move on. what to do???? just to let you know we never even had or got very ual so its not about the . We are just trying to figure out what to do before we get caught up in our feelings and we can't even ween off eachother anymore