Why does Thisbe kill herself?

Thisbe kills herself in a tragic misunderstanding after finding her lover, Pyramus, dead. Believing he has taken his own life due to her supposed betrayal, she is overwhelmed by grief and despair. In her sorrow, she takes her own life to be united with him in death, highlighting the themes of love and fate in their story. Their deaths ultimately illustrate the devastating consequences of miscommunication and the intensity of their love.