Hey, I'm going to straight up tell you to let her go from a friend perspective..... trying to be an ex's friend especially after feeling taken advantage of is a great way to feel like you've been taken advantage of again....ask me how I know haha, it hurt like hell at the moment but if your ex wants to be your friend they will be...it doesn't take work.
For example my best friend growing up...haven't spoken since 05 right after college (I'm old)...I moved to his area and reached out ...it was like no time had passed....
Best way I can put it, a real friend is willing to help you move for no other reason than they like you... would she help you move?