With what antagonistic sentiments were his subsequent reflections affected?

Envy, jealousy, abnegation, equanimity.

Envy?

Of a bodily and mental male organism specially adapted for the superincumbent posture of energetic human copulation and energetic piston and cylinder movement necessary for the complete satisfaction of a constant but not acute concupiscence resident in a bodily and mental female organism, passive but not obtuse.

Jealousy?

Because a nature full and volatile in its free state, was alternately the agent and reagent of attraction. Because attraction between agent(s) and reagent(s) at all instants varied, with inverse proportion of increase and decrease,