After her talk with Ian, Mariah exited the room and ran into Tyler.Mariah and Tyler argued about Abby, and Mariah followed him and tried to win him back.
Scared, Mariah called Ian and was shocked to learn that he was in Genoa City as well.
Tyler was dismayed that Mariah would do something like that.
As Mariah stayed in Genoa City, she would frequently talk with Sharon, and she was shocked and puzzled by Sharon's kindness towards her after what she put her through.
She first appeared onscreen posing as Cassie's "ghost" and wasn't revealed as Mariah for a few months.
As Mariah, she was mostly distinguished by a sun tattoo on her wrist, which was hidden by long sleeves when she pretended to be Cassie.