NeNe Leakes’ last full season on RHOA was Season 12, and she announced in September 2020 that she would not return for Season 13.

Why she left

She said the exit came after a long, difficult negotiation with Bravo and that the offer on the table was not fair.

Reports and later commentary also pointed to tension with Bravo/Andy Cohen and NeNe’s claim that she felt pushed out, though she publicly said she made the decision to leave.

In plain terms

  • Last season: Season 12.
  • Reason given by NeNe: contract dispute and an offer she didn’t accept.
  • Extra context: fallout with Bravo and Andy Cohen became part of the story afterward.

TL;DR: NeNe’s last season was Season 12, and she left because she said Bravo’s offer wasn’t fair after a long, emotional negotiation.