Being afraid of coming out to one's parents is not some kind of sin. Sun was the one that first outed Ongsa's cousin and then Ongsa herself but Ongsa is the one that has to spend the entire episode crying and begging for forgiveness? Especially since her mother in the book IS IN FACT a homophobe that is constantly treating Ongsa's father's bisexuality as a personal attack. I just. Ugh!