Hey now,
Move on only if you want to move on, not because your gf can't forgive/forget your past.
Do not feel guilty of the past - rather, acknowledge the past, make amends, clean your side of the street and move forward.
You stated you put her through hell, so it's going to take time for your gf to regain the trust she once had; only through time, and observing your thoughts and deeds, will she see and feel safe and comfortable with the new you.
This is a big transition for her as well; live and let live, work your program, have patience and tolerance, and rebuild your relationship - if you still want it.
Best wishes