"Mrs. Hawking's asexuality, and its peculiar effect on her outlook"
I couldn’t tell you why, but I have a fondness for asexual characters. They are very rarely represented in fiction, so I am fascinated when I encounter them, and tend to be very protective of the integrity of their identities thereof. Those of you of the type inclined to ‘shipping may find this frustrating, but that’s the way I’ve always seen Mrs. Hawking.