It's the idea that if you love your husband or wife but you still are attracted to other people, there's something wrong with you, there's something wrong with your marriage, something wrong with your partner.
Ideea că dacă îți iubești soțul sau soția dar ești atras de alte persoane înseamnă că ceva e-n neregulă cu tine, cu căsnicia ta, cu partenerul tău.