@SisOfNight, I agree about the Caregiver-Childlike dynamic. Wallis Simpson looks very Delta to me. In fact, in the second picture, she looks very much like my LSE mother. Very similar expression, very similar eyes, while Prince Edward VIII looks ILE to me. (In the first picture, I can't tell which type he is.)
In the second picture, I imagine her to be thinking "You are so smart, I'm proud of you and I'm going to be taking care of you." while he is thinking "Now that my back is covered, I'm finally free to be my impish, devilish self."