She'd loved him once. He'd said he loved her, but it wasn't true. He'd used her fame to further his career. When stardom seemed within reach he’d dumped and humiliated her.
He’d soon know the fury of a woman scorned.
Obviously he'll die; his end must be final, her revenge total. How? Drowning, murder, cancer? Would she watch him ugly with pain, humiliated by weakness?
No. She'd arrange a slow, boring disappearance rather than an exciting blaze of glory. It would give him time to beg too.
Remember; if you're an actor in soap opera never, ever upset the scriptwriter.