Romeo and Juliet...... heartbreak......

My problem is kinda difficult. I am seeing a guy I like not my boyfriend but dating. A great guy the best I dated in a long time. Respects and nice you don't find that a lot. He treats me like a princess. I love being around him great company and he also likes me. We kinda have the same lifestyle were calm, smart, he has brothers and I have sisters and me and him are the only one not taken yet. How strange. He likes going to the gym and do stuff I like to do. We are kinda the same. Strange. Were both are dating yet told me he doesn't want a girl yet and me either were both are struggling with issues he with drugs and want to change. I know. Well my problem is I don't know what to do I gotta let him go because I need to focus on me and I haven't in a long time. Im going to college and starting a life like I always wanted moving to a new town doing me. But I cant be with him and take him along if I want to start fresh. Its killing me. I don't want to make a mistake and be with him and it didn't work out and leave my future for him. It sucks now I wish I never met him but you know what when he wasn't in my life it was chaos and since he was in my life its calm and love like I always wanted. ive been through a lot with sume crazy guys and how dis guy is treating me I cant just leave him and say peace out. I can leave someone without a problem. This time is hard living someone. Very hard its killing me inside and out. Before this guy met this crazy guy through facebook and the relationship suck. That is also I want to start fresh and forget my past and live a normal life like I should. Im getting old almost to 30 yrs old so cant make a big mistake. Im a smart girl and know what I want in life. But this time its hard and don't have a lot of friends to chat with why disconnected with them why long story... Ok thaxs whoever is going to help me and take care.......