“A Catholic woman I knew who was a worshipper of Mary”
Either the Catholic is in error of Catholicism, or somebody is bearing false witness against her.
Said Catholic woman wanted to think of God as female or was confused by the ridiculous teachings about Mary. It's a profound misunderstanding of who God is to ask such a question. Her desire really seemed to adore/worship Mary per conversation with her and the RCC was all too ready to help in that endeavor though the next person may pick a different "saint" to adore or the Pope or just the institution.