Isabel Wu

Isabel Wu is Charlie Wu's ex-wife, and a secondary character and later antagonist in the Crazy Rich Asians book series by Kevin Kwan.

Background
Isabel is a Singaporean socialite and daughter of Deidre Lai, a judge. She was previously married to Wu Enterprises CEO Charlie Wu. With him, she raised two daughters: Chloe, whom she had from a previous relationship, and Delphine, her natural daughter with him.

Rich People Problems
Isabel suffers a breakdown and kidnaps her daughters, forcing them to accompany her as she forces her way into a banquet that Astrid Leong, her ex-husband Charlie's current lover, is attending. She shouts obscenities before throwing a bowl of noodles at Astrid, which fail to hit her.

After receiving treatment, Isabel appears to have improved significantly and even meets with Astrid to apologize and indicate consent to Astrid's relationship with her ex-husband. However, Isabel is actually secretly working with Astrid's ex-husband Michael to blackmail her and ruin her reputation.

One night, while suffering another breakdown, Isabel attempts to hang herself from a chandelier in her ex-husband's new house, and posts an obscene video of Astrid and Charlie having intercourse that she had secretly recorded, causing a public scandal that forces Astrid into exile.