Why Did Vesper Betray Bond?

Why does Vesper betray Bond in Casino Royale? Vesper killed herself because she knew she was wrong. She had betrayed her country and Bond by channeling the terrorist's money for them and by killing herself she ended that investigation into her crimes there.

Why did Vesper kill herself?

Bond may still have felt that he could have helped Vesper if she had taken her own life, but in the movie version of Casino Royale, it is unambiguous that Vesper locks herself in the elevator because she believes it is impossible for both her and Bond to escape at the same time.

Why did Vesper lock herself in the elevator?

Vesper is kidnapped by Le Chiffre to lure Bond into a trap in order to extort the tournament winnings. ... Although he kills her enemies, Vesper cannot live with her actions and she locks herself in the elevator of a collapsing building and drowns. Bond is devastated by her death and closes himself off emotionally.