Daphne realizes that Simon’s claim that he "cannot" have children is actually a choice—a vow he made to his dying father to end the Basset line. This leads to a major confrontation where Daphne feels deeply betrayed by Simon's deception.
Marina’s pregnancy is exposed to the public through Lady Whistledown's pamphlet. Bridgerton s01e06
For a deep dive into the character motivations, you can read the full recap on TV Tropes or view the official episode details on Rotten Tomatoes . Why We Need to Talk About Sexual Assault & Bridgerton Daphne realizes that Simon’s claim that he "cannot"
The scandal effectively ruins the Featherington family's social standing and ends Marina’s engagement to Colin Bridgerton. Bridgerton s01e06