Henrietta and Philippe I signed their marriage contract at the Palais Royal on 30 March 1661. The ceremony took place the next day in the same building in front of select members of the court.
Known as Henriette d'Angleterre in France, and Minette to her intimates, she was known officially as Madame and was ever popular with the court. Court gossip later said that the king was the father of Henrietta's first child. Henrietta's very open flirting is said to have caused a jealous Philippe to retaliate by beginning to flaunt his sexuality openly in a less than accepting era.
Henrietta's flirting with the king started early in the summer of 1661 while the newlyweds were staying at the Palace of Fontainebleau for the summer. Philippe complained to his mother about the intimacy that Louis and Henrietta displayed, which led Queen Anne to reprimand both son and daughter-in-law. Relations were further strained when Henrietta allegedly seduced Philippe's old lover, the comte de Guiche.
In February 1662, Louise De La Vallière (Henrietta's Maid of Honour) and her lover King Louis XIV fell into conflict. Despite being directly questioned by the King, Louise refused to tell her lover about the affair between Henrietta and the comte de Guiche. Henrietta was having an affair with the King Louis XIV by that time as well.
In 1665, the comte de Guiche was exiled from the court with Philippe reporting to Queen Anne that Henrietta had had private interviews with the dashing nobleman.