When I got married my wife would not let me even think about having a gun in the house. She was even in the Navy with me and still no way. I have slowly turned her to my way of thinking. When ever the subject of guns come up I would talk about how my family would teach us about guns, proper gun safety, how to treat a gun, what to do with a gun when children are in the house, how to teach kids about guns. The last straw for her was the Virginia tech shooting. She just passed her CHL class with me and is letting me bring my rifles from my parents and is buying us a Beretta PX4 storm. It only took 10 years but just be patient. She will hopefully come around to your way of thinking.
