Mickey, I don't know exactly what was said but as a mother I can say I have absolutely discussed parenting strategies with my husband at different times in our son's life. Our son does not have MI but life has had it's challenges for him too at different times and knowing how best to support him has not always seemed straightforward.
In short I guess I'm saying parents want to help their children the best way they can but (especially when they are still together as a couple) they often need to discuss with each other how best to do this. It's borne out of love and concern.
Please don't feel sorry or guilty, I am sure they would not want that, when we choose to have children we choose to love and support them whatever happens in life, even if it is not always easy to know how best to do this.
Sending you a big hug