The Script Was Written Before the Affair Happened
You didn't write it. Your mother didn't write it either, though she will recite it to you with absolute conviction. The script says: a woman who holds her marriage together after her husband's affair is strong. She is mature. She has dignity. The woman who walks out is impulsive, selfish, unable to see the bigger picture. She has broken the family. She has failed at the one thing she was most supposed to succeed at.