Love and relationship please help me!!

So there's this guy that I've been on and off with for a year because I didn't know my feelings I knew I loved him and I never felt this way before about anyone and I've dated a lot of ppl but almost losing him over the summer opened my eyes and all I want is him everything about him is perfect and there's just so much that I fall in love with even the things he hates about him self I fucking love and he's all I want and all I need but there's this girl he don't truly love and she don't love him it's a real bad relationship and he knows that but is really bad at break ups he hates hurting ppl and I know he loves me but I just want him so bad it kills me so much not to be with him and I'm so scared not to be with him and get a second shot cause his dad's dead and he came to me in a dream and I know some ppl dont believe in this stuff but he told me that me and this guy are gonna get married in 3 years and I call his passed dad my dad cause that's just what me and this guy decided and I know this guy still loves me too so all of this slowly kills me and idk what to do I just need to vent about this all but if you have anything to help me please keep it positive and not tell me to just move on I've already tried and it put me in a dark spot with out him in my life