Day 1, housemates voted her out.
They brought her back with a mission where she can stay if she keeps Bianca under control. She failed but they let her stay.
They gave her a favourable edit.
Then in the finale, Ben had more votes. So they extended the voting time. Urging people to vote for Terri. The tallies where blind. After extending the voting, Terri still wasn't winning. So they unmasked the tallies to show Ben was winning. Urged people to vote for Terri. Then when she had more votes, closed the voting.
Am I remembering correctly?
I was so annoyed at the time. That season was good. That creepy old man. How the punished Nobbi by giving him a van, which then became his clubhouse and backfired. Bianca was hilarious. Good times. Where do people rewatch old seasons? Youtube?
