Hi Subtlecollision,
Being more humble is helpful for all of us, of course, but along with that application of wisdom is the act of being open to applying Hermeneutical studies (i.e. those studies which reflect upon how your own viewpoint interacts with historical details involved with the multi-faceted development of Christian thought and biblical interpretation through the centuries and from one local to another).
Maybe in some way you're already doing this, but being that I don't know you and I don't know all that you've already read and reflected upon, I'll simply affirm that studying our common historical strands of Christian Theology from different angles can sometimes enable us to look more deeply at how different interpretations or innovations of thought have formed and have taken on new theological codifications within various branches of the Christian Body of believers.
In all of this I hope for the best for you and your spouse as you both continue to think about, learn and live your faith within your marriage.
Be blessed!