There have been rumours over the years - this is from 2003
'
Willis, Bruce. His separation from Demi Moore was
extremely bitter. Former bartender and reportedly a former male escort. Rumored to like boys, strippers, and group scenes. Generally vain & unpleasant person. Difficult to work with. Cheapskate
(although, as is always the case with allegations like this, I've received a few reports to the contrary). Linked with Lara Flynn Boyle, Milla Jovovich, Julia Roberts, Winona Ryder, and Liv Tyler.'
From the very old:
https://accountant247.tripod.com/gossip.html