The long-standing friendship between billionaires Bill Gates and Warren Buffett has seen a significant downturn in recent years. What Happened: The friendship between Gates and Buffett, two of the world’s wealthiest individuals, has its roots in 1991. This relationship, which resulted in numerous joint ventures and philanthropic initiatives, has reportedly cooled both on a professional and personal level. Despite initial hesitations, the two formed a strong bond and mutual mentorship. Gates even persuaded Buffett to invest in stocks of Intel and Microsoft, thereby initiating their business par…