Antigone's decision to defy Creon was motivated by her strong sense of familial duty. She felt that it was her duty to give Polyneices a proper burial, even if it meant risking her own life. However, Antigone's actions also had a tragic impact on her family and friends. Her sister, Ismene, was also arrested for helping her bury Polyneices, and her fiancé, Haemon, committed suicide after learning that Antigone had been sentenced to death.
Ultimately, Antigone's decision to bury Polyneices was a tragic flaw because it led to her own death and the destruction of her family. However, Antigone's actions can also be seen as an example of her strength and courage. She was willing to risk her own life to do what she believed was right, and her story continues to inspire people around the world.