Elon Musk and Jack Dorsey's relationship is a rare example of tech CEOs supporting one another. Take a look at the evolution of their crypto bromance.

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• Jack Dorsey and Elon Musk are vocal crypto enthusiasts and have been friendly to each other online.
• Dorsey has called Musk one of his favorite tweeters, and Musk has said Dorsey "has a good" heart.
• Their friendship stands out against other tech execs' feuds, like Mark Zuckerberg and Tim Cook's.

Both Jack Dorsey and Elon Musk have emerged as quasi-bitcoin ambassadors, using their Twitter platforms to spout their devotion to the virtual currency.

And their mutual love for the digital asset has brought them together in a way that has become somewhat rare among big tech executives.

Facebook CEO Mark Zuckerberg and Apple CEO Tim Cook famously have beef stretching back years, and Microsoft co-founder Bill Gates had a long feud with the late Apple visionary Steve Jobs.

Musk himself has gotten into tiffs with Gates over Tesla's electric vehicles and COVID-19 vaccines.

But what Musk and Dorsey have shared online is different. And it looks like their correspondence might culminate in their first public appearance together at a July bitcoin conference.

Here's how their bromance was born and blossomed.