She has conquered a lot in life and is a true survivor already. But as far as the game goes, she was kind of invisible the whole episode until the bug thing happened. Then she toughed it out and she got the magic quote in episode 1.
put the money in the bag and stole the keys,
that was the last time you ever saw me . . .
She actually wasn't safe going into tribal council. They leave a lot of stuff out of the show, but according to some comments Kyle made on twitter, Jennifer was already the target. Either Alecia or Cydney told him about Jennifer's plan for the all girls alliance, and she was voted out because of that.