Complex sentence: She tried to convince Bree to leave Orson by telling her he was a bad person and revealing his affair with the deceased Monique, and then teams up with Alma to separate Orson and Bree.
Split into simpler sentences: She tried to convince Bree to leave Orson by telling her he was a bad person and revealing his affair with the deceased Monique. Gloria then decides to team up with Alma to separate Orson and Bree.