A Dangerous Flirtation

Victorian (American) novel has everything. Poor girl mistaken for rich heiress Secret wedding Presumably honeymoon sex Secret wedding was a sham Identical cousins (with the same name) Sexual harassment in the workplace A heroine who faints all the time and "almost dies" when things go wrong Attempted suicide Brain fever and honeymoon baby delivery Baby died in orphanage Marrying wrong guy, neither noticing somehow No such thing as annulments Marriage in name only Gradual falling in love Jealousy Heroine with inability to understand how flirtation works