India, Nov. 22 -- Rumer Willis recently shared a heartbreaking update on her father, Bruce Willis's dementia battle. The Armageddon star was diagnosed with primary progressive aphasia (PPA), a subtype of frontotemporal dementia (FTD), in 2022. At the time, his ex-wife, Demi Moore, shared a statement announcing his retirement. Since then, the 70-year-old has remained out of the public eye as his family looks after him.

On Thursday, Rumer took to Instagram to reply to a fan who asked her: "How's your dad doing?" She admitted that "people always ask this question." The 37-year-old explained that the question is "a hard one to answer because the truth is, anybody with FTD is not doing great."

The Escort star further shared that her father i...