What do you want to do, Gerk? If she is still involved w/ OM, then you can't expect her to behave much better than she has been. You've done a good plan A, you can complete it by bringing her her things, in person and then handing her your Plan B letter.

Eventually the A will end. And she may pull her head out of her [censored] and realize what a fool she was to let you go. Especially when she thinks of all you did during your Plan A.

Or you can go directly to plan FU followed closely by Plan D.

It's up to you.