You crossed her boundaries. The OM is part of her support group and you have compromised him. She is hurt by what you have done. It would be like if had a really good friend who was there for you through all this and she went to that friend and tried to get him involved in her POV. Give her a heartfelt apology, no excuses, no reason for doing it, no explanation.Just apologize to her.
“Do you want to be RIGHT or want to be LOVED” “You have to have a life to share a life with someone” “When you stop resisting, you start learning”