He forced Kitty to go with him.
Now that they are in the middle of the epidemic, Kitty and Walter started to bond. Walter was always busy with his medicine, so Kitty then started to go around town and got to teaching music at the local orphanage. It was there that they discovered their common love for children. Kitty then learns that she is pregnant but is unsure of the paternity.
A neighboring town with no doctor got infected with the epidemic and the town folk migrated to where the Fanes were. Walter now was attending to more people. He then gets infected and later was dying fast. Kitty nursed her husband until he died.
Observation #1: Walter loved Kitty from the start but being forced into the marriage, Kitty felt uncomfortable with him. Add to this their differences in personalities Kitty is bound to break her vows.
Concept #1: Kitty came from a wealthy family with a headstrong father. It is possible that her parents forced her to marry because they are excited to have grand children or afraid not have grand children at all. Her parents had the idea that a bigger family would be make everyone happy thus arranging the marriage. (Lecture 4, Pre-Modern Consequent Social Conditions)
Concept #2: It is known that one major cause of death in pre-modern societies is epidemic diseases (Lecture 5, Causes of Death is Pre-Modern Societies). This is the case in the small town in China where Walter volunteered. This is the work he wants despite of the risks (Lecture 6, Reasons Why Women Live Longer).
Observation #3: Kitty becomes worried after being informed that they are going to a Chinese town with a cholera epidemic. She thinks that being in the hot zone "surely not a place for women. To avoid going, she comes to an agreement with Walter to get divorced and ask Charlie to divorce his wife so that she and Charlie could be together. She lost hope when Charlie declined.
Concept #3: Kitty got the "mean world" syndrome (DeSpelder andStrickland, Mean World Syndrome). The idea of being in a god forsaken town coupled with Walter wanting to divorce her with the grounds of adultery would destroy her name if not kill her and it drives her to do make impulsive and irrational decisions.
Observation #4: Upon arrival on the Chinese town, Kitty was surprised that she wasn't inoculated for cholera. She knew that is was a deadly disease but did not know how it kills. She then was told that cholera kills within 36 hours through dehydration and diarrhea.
Concept #4: Kitty was just forced into the center of the epidemic, but if she had better informed, she might have come up with an alternative. Her lack of medical knowledge (Lecture 5, Epidemic Causes) led to her being exposed to the reality of the situation. The best that happened was being educated with health care.
Observation #5: A guard was assigned to Kitty as precaution against the Chinese nationalists. Another reason for this was to limit her to the house while Walter tended to the sick.
Concept #5: Pre-modern people did not have the concept of equality of the sexes. The assumption that Kitty was frail and incapable of self defense then followed. Men are also assumed to take more risks (Lecture 6, Reasons Why Women Live Longer), thus the male guard guarding the lady.
Observation #6: Drinking water is taken from