Lyric discussion by ErikO 

@ex77 - The 'monkey' she has been promised all night during lady drinks refers to the 500 GBP the client would have agreed to.

Here: metro.co.uk/2018/01/10/much-pony-monkey-cockney-rhyming-slang-money-explained-7219427/

A 'monkey' is 500 quid, as we say.

And the 'fingers left on his hand' would refer to the typical Russian gangster client she is 'entertaining' that evening. A few of them really are missing fingers..

And I'm sure the love is as cold as you describe it.

However, everyone gets laid, and everyone gets paid. The world keeps on turning.

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