Daffodils

In an alternate universe, love between two person from opposite sex considered as the biggest sin. People from same sex were bound to love and marry. They didn't have any freedom to love a person from opposite sex. If they do love someone from opposite sex, they were considered as sinners and sent to the mental asylum. Couple, after marriage, could sign a contract with the donor of sperms/eggs for a child.
In the same universe, a boy, who already have a boyfriend, had fall in love with a girl. He committed the biggest sin of this universe. On the other hand, that girl also liked him, but afraid to admit. On one fine day, they both open up about their feelings.
But what will happen when everybody came to know about them? What will happen to their love? What will be their fate?