I was thinking something like, "I'm sorry, but I won't be funding a petition for divorce I did not want or deserve." Too emotional? Too passive-aggressive?
The weirdest part, for me, is your apology. I would drop "I'm sorry." If you feel the need to apologize for some wrongdoing, be clear and remoreseful about what you're apologizing for.
"I won't be funding a petition for divorce I did not want" is more complicated. Are you sure you don't want this? My understanding of your last messages is you wanted it but you wanted her to do it so the responsibility for giving up was forever clear and now you're getting your wish, that if she responded "Okay, I can wait a little longer" you'd continue in this purgatory-like limbo state and be disappointed.
"No, I won't be funding this petition for divorce." is maybe enough? Yes, dropping emotions, dropping passive-aggressive, and just stating your decision.
