Blimey. I'm guessing he didn't go on to a wildly successful solo career after the band split?
This isn't quite on the same scale, but despite several weeks off after the Xmas period, the keyboard player in a function band I play with announced that he didn't want to rehearse any more, apart from a couple of times just before gigs to refresh his memory, as he put it. As the band only just took on a new guitarist, the rest of us tried to point out that wasn't practical, especially as the said keyboard player was not up to speed himself, regularly going blank in the middle of songs, despite being in the band for over a year. He then proceeded to lecture the rest of us via WhatsApp about how much work he had put in, and how it was totally unreasonable to expect someone of his musical calibre to spend his hard-earned money on rehearsal if there wasn't an imminent gig to offset said outlay. No other bands he knew of worked like this, he went on, and as he gained his "musical satisfaction" elsewhere, he didn't need to "rehearse for fun" like the rest of us!
In response, we took a slightly firmer position than perhaps he might have expected, pointing out that we would rehearse anyway, get another keyboard player to come down and help out, and that if the dep knew the set, we were far more likely to call him first when gigs went in the book. There then followed furious back-pedalling (again via WhatsApp) from Dr Dentures about how much we needed him to help with organisation, video editing, and "general musicality". I'm not sure how he thought that last point was going to win any friends, but suffice to say it went down like a cup of cold sick. He followed it up by warning that "an all-or-nothing approach would be making it hard for ourselves going forward"!
Bloody keyboard players. They know they're hard to come by, so too often act like prima donnas. Bass players don't seem to suffer from this sort of bizarre egotism to anything like the same degree. Maybe I should form a band of only bass players... I know it's been done already, but it would be good for my mental health...