Both Uses

resent
in
Esperanza Rising
(Edited)

They both knew that even though it was 1930 and the revolution in Mexico had been over for ten years, there was still resentment against the large landowners.
p. 12.1 *

resentment = a feeling of anger or unhappiness about something that isn't fair
When she turned around one last time, she could see nothing behind her but a trail of splattered figs she had resentfully smashed beneath her feet.
p. 57.9

resentfully = with a feeling of anger or unhappiness about something that isn't fair

Definitions:

(1) (resent)
to feel anger or unhappiness about something seen as unjust or something that creates jealousy
(2) (meaning too rare to warrant focus)
Less commonly, resent is another spelling for re-sent; i.e., sent again.