With his exceptionally explicit and startlingly revelatory Sonnet 144 William Shakespeare addresses head on the fact that his mistress and his lover are certainly friends, and that he suspects – rather strongly, we get the impression – them to be so with benefits.

By identifying the man as 'right fair' and contrasting him with a woman who is 'coloured ill', he confirms what we have long thought to be the case: this is a constellation that has turned triangular, and it involves these precise three individuals, the poet, his younger male lover, the Fair Youth of the first 126 sonnets in the collection, and the Dark Lady around whom 25 of the remaining 28 sonnets revolve. 

This rather puts paid to the suggestion espoused by some scholars that these sonnets can or let alone should be read in isolation, that no narrative of any kind should ever be deduced from them, or that they may have been written to and about any number of lovers of any gender over the period of their composition. What Sonnet 144 shows beyond anything that might still be considered reasonable doubt, and much in line with Sonnets 33 through 42 in the Fair Youth section and Sonnets 133 and 134 in this, the Dark Lady section of the collection, is that these two groups of poems overlap, that they concern themselves with the same 'two loves' of Shakespeare's, and that our poet is profoundly disturbed by the fact that, as he sees and presents it, his mistress has seduced his young man.