5. "Your dad and I always..."
Don't allude to the great times you have with their father when they're not around. They already feel left out, and probably imagine the two of you tossing your heads back laughing, spending wads of money, and throwing Ring Ding wrappers on the floor (not to mention the sexual fantasies going on in their fevered little brains). If you want to give them a positive image of a loving couple, just be a loving couple.