Starting with a huge crash of synth and trumpet, it remains one of the more dramatic songs recorded by the duo—reminiscent of early hits like "It's a Sin". It was released as Very's lead single, almost four months before the LP itself, and became the duo's 13th Top 10 single in the UK. Although it peaked outside the Billboard Hot 100, it became a number 1 single on the US Dance chart.

The lyrics describe in the second person a young man's humiliation when his girlfriend accuses him of still being in love with a childhood friend (implicitly male); the woman is "not prepared to share you with a memory", and is "going to go and get herself a real man instead". The title of the song derives from the Anthony Trollope novel of the same name.

The second B-side, "What Keeps Mankind Alive?", also appears on the 2001 re-release of Introspective, which implies it was recorded between 1988 and 1989. The song is a cover of a musical composition, written in collaboration by Bertolt Brecht and Kurt Weill, and it has been associated with the acclaimed musical, The Threepenny Opera.

In marketing for the single, the Pet Shop Boys adopted a bizarre costume involving red coveralls and extremely tall pointy hats. The music video was directed by Howard Greenhalgh and depicts the duo wearing the costumes while wandering in a surreal computer-generated environment. Live action shots were filmed in a number of either well known or futuristic locations around London. They cross London Bridge in the rush hour crowd and also walk over the footbridge at Poplar station on the Docklands Light Railway. They are shown at the top of The Monument in the City of London. The park scenes were filmed in Battersea Park and one shot shows them standing in one of the remaining sculptures from the 1951 Festival of Britain fun fair.

...
Wikipedia