He didn't tell Elizabeth that he was alone with Abigail when they talked.
Answer:
Subtracting is the expression
Explanation:
(De)scended
The analogies are the following:
1. Cause to effect: digestion - eat
2. Part to whole: organs - body
3. Word to antonym: day - night, word to synonym: serene - calm
4. Object to characteristic: sun - shine
5. Time sequence: marriage - children
6. Spatial order: garage - car
Possibly to emphasize it, or to mark it as being sarcastic. You choose.