oof.. You hit a lot of red flags there! And that's for another thread. Some women are so tired of being told how to do something, that the man/husband/boyfriend mansplaining yet another thing automatically triggers the ignore button.My wife takes everything I suggest onboard and through my guidance and advice she has become a very qualified and competent diver. She has told me numerous times that I have taught her far more than she learned from her OW and AOW instructors and countless DMs.
Not understanding why your wife brushes you off when you try to help. Especially with a challenging and potentially dangerous sport. Was she always like this? I sense a trust/communication issue that has nothing whatsoever to do with diving.
I am genuinely happy for you that you are able to articulate skills etc, without mansplaining. It's a skill that is lost on most men.