Bacon met George Dyer in 1963 at a pub, although a much-repeated myth claims their acquaintance started during the younger man's burglary into the artist's apartment. Dyer was about 30 years old, from London's East End. He came from a family steeped in crime, and had till then spent his life drifting between theft, detention and jail. Bacon's earlier relationships had been with older and tumultuous men. His first lover, Peter Lacy, tore up the artist's paintings, beat him in drunken rages, at times leaving him on streets half-conscious. Bacon was now the dominating personality; attracted to Dyer's vulnerability and trusting nature. Dyer was impressed by Bacon's self-confidence and artistic success, and Bacon acted as a protector and father figure to the insecure younger man.
Dyer was, like Bacon , a borderline alcoholic and similarly took obsessive care with his appearance. Pale-faced and a chain-smoker, Dyer typically confronted his daily hangovers by drinking again. His compact and athletic build belied a docile and inwardly tortured personality. The art critic Michael Peppiatt described him as having the air of a man who could "land a decisive punch". Their behaviours eventually overwhelmed their affair, and by 1970 Bacon was merely providing Dyer with enough money to stay more or less permanently drunk.
As Bacon's work moved from the extreme subject matter of his early paintings to portraits of friends in the mid-1960s, Dyer became a dominating presence in the artist's work. Bacon's treatment of his lover in these canvases emphasised his subject's physicality while remaining uncharacteristically tender. More than any other of the artist's close friends portrayed during this period, Dyer came to feel inseparable from his effigies. The paintings gave him stature, a raison d'etre, and offered meaning to what Bacon described as Dyer's "brief interlude between life and death". Many critics have cited Dyer's portraits as favourites, including Michel Leiris and Lawrence Gowing. Yet as Dyer's novelty diminished within Bacon's circle of sophisticated intellectuals, the younger man became increasingly bitter and ill at ease. Although Dyer welcomed the attention the paintings brought him, he did not pretend to understand or even like them. "All that money an' I fink they're reely 'orrible", he observed with choked pride.
Dyer abandoned crime but soon descended into alcoholism. Bacon's money attracted hangers-on for massive benders around London's Soho. Withdrawn and reserved when sober, Dyer was highly animated and aggressive when drunk, and often attempted to "pull a Bacon" by buying large rounds and paying for expensive dinners for his wide circle. Dyer's erratic behaviour inevitably wore thin – with his cronies, with Bacon, and with Bacon's friends. Most of Bacon's art world associates regarded Dyer as a nuisance – an intrusion into the world of high culture to which their Bacon belonged. Dyer reacted by becoming increasingly needy and dependent. By 1971, he was drinking alone and only in occasional contact with his former lover.
In October 1971, Dyer joined Bacon in Paris for the opening of the artist's retrospective at the Grand Palais. The show was the high point of Bacon's career to date, and he was now described as Britain's "greatest living painter". Dyer was a desperate man, and although he was "allowed" to attend, he was well aware that he was slipping out of the picture. To draw Bacon's attention, he planted cannabis in his flat and phoned the police, and attempted suicide on a number of occasions. On the eve of the Paris exhibition, Bacon and Dyer shared a hotel room. When Bacon returned to his room the next morning, together with Danziger-Miles and Valerie Beston, they discovered Dyer in the bathroom dead, sat on the toilet. With the agreement of the hotel manager, the party agreed not to announce the death for two days.
Bacon spent the following day surrounded by people eager to meet him. In mid-evening of the following day he was "informed" that Dyer had taken an overdose of barbiturates and was dead. Bacon continued with the retrospective and displayed powers of self-control "to which few of us could aspire", according to Russell. Bacon was deeply affected by the loss of Dyer, and had recently lost four other friends and his nanny. From this point, death haunted his life and work. Though outwardly stoic at the time, he was inwardly broken. He did not express his feelings to critics, but later admitted to friends that "daemons, disaster and loss" now stalked him as if his own version of the Eumenides (Greek for The Furies). Bacon spent the remainder of his stay in Paris attending to promotional activities and funeral arrangements. He returned to London later that week to comfort Dyer's family.
During the funeral many of Dyer's friends, including hardened East-End criminals, broke down in tears. As the coffin was lowered into the grave one friend was overcome and screamed "you bloody fool!" Bacon remained stoic during the proceedings, but in the following months suffered an emotional and physical breakdown. Deeply affected, over the following two years he painted a number of single canvas portraits of Dyer, and the three highly regarded "Black Triptychs", each of which details moments immediately before and after Dyer's suicide.