It is hard when she says that it's BS that I ever loved her.
That's the TEST!!!! She really wants to know that you love her. Change the medium, write a note.
"I understand why you feel I never loved you. I am truly sorry you feel that way. I regret that I didn't know how to show in the right ways for you. Given the opportunity for a second chance I would make sure I do things better for you and my family. I know what is in my heart and I do love you." - Antlers
I don't see anything in there that is ambiguous or hurts your legal case.
Cheers
M22,H45,W45 S21/18D12 Retain faith that you will prevail in the end, regardless of the difficulties and at the same time confront the most brutal facts of your current reality, whatever they might be.