In 1867 Robertson remarried. His second wife was Rosetta Elizabeth Rodmill Feist (1844–1912), whom he had met at a party in London in 1866. They became engaged in August 1867, married at the British consulate in Frankfurt on 17 October, and honeymooned in Paris. They had a daughter and a son. Once back in London, Robertson continued to write and direct. In February 1868 "Play" was produced at the Prince of Wales's. It ran for 106 performances and was followed by a successful revival of "Society". In the same year Robertson adapted Alfred de Musset's 1834 play "On ne badine pas avec l'amour" for his sister Madge. As "Passion Flowers" it was staged under Robertson's direction at the Theatre Royal, Hull and on tour.