Something I noticed is that I'm like 99% sure that the teacher trying to be a homewrecker would hate the mother eventually. She basically creates her own narrative when reality is inconvenient to her, so the teacher saying even one thing wrong and her doing her shit would end the relationship fast. He would probably either hold out until he just explodes on her or would call her a crazy bitch and leave her.
Right now he can only deal with her because he has an image of her as an innocent woman, he doesn't constantly have to live with her, and he has a punching bag (the husband) to deflect onto.
Something I noticed is that I'm like 99% sure that the teacher trying to be a homewrecker would hate the mother eventually. She basically creates her own narrative when reality is inconvenient to her, so the teacher saying even one thing wrong and her doing her shit would end the relationship fast. He would probably either hold out until he just explodes on her or would call her a crazy bitch and leave her.
Right now he can only deal with her because he has an image of her as an innocent woman, he doesn't constantly have to live with her, and he has a punching bag (the husband) to deflect onto.