She was a stripper and at the strip club, she met Kenneth, who is double her age, if not any older.
She somehow loved him yet was also gold-digging him but when he got a stroke, she was crushed.
When she married him, she was in conflict with his daughter, Lucinda, who thinks of her as a slut and a gold-digger.
When Rosie starts working for her, we are shown of her gold digging ways but at the same time she does love Kenneth at some extant.
Therefore, she is a neutral Character. When Reggie was tearing apart the Miller household, Rosie reunites Didi and Lucinda to stop Reggie, which succeeds.
She possibly gets along with Lucinda later on.