Obsessed with a girl i barely know
In high school I had a huge crush on this girl who didn't feel the same way about me. She was my only friend during a time where I was going through a lot. My dad had passed away, my broke ass mom got us evicted from our apartment, I was being bullied in school, etc etc. I was really suicidal at the time, and she came out of nowhere one day and was really the only one there for me. We were friends for about a month.
I told her I loved her. I really felt that way. I thought of her non stop. I was borderline obsessed/love drunk/whatever. I obviously didn't think it through, and she told me that we could never be anything. I was heartbroken, of course. We were just kids then.
We never really were the same after that, but we have kept in touch ever since. It has been YEARS. I've been in relationships on and off since then. I have never felt like that again.
Honestly, I still feel the same way about her now as I did then. I just have managed to shove it down, hide it. Whatever. I've been dating my current GF for about 4 years now. I love her too, but it is completely different. I'm going to marry my GF. I hardly talk to this girl from my past. And yet, I feel so strongly for her. I just don't get it. I feel consumed by this girl who I barely know.
How do I accept the fact that I'll never be good enough for either of them?
EDIT: TO MAKE THIS EXTRA CLEAR I'll REPOST THE COMMENT HERE
TLDR: My problem is that (I fell in love with her) in highschool and I still feel the same exact way about her that I did then. I'm in a committed relationship. It is fucking with my head.