Rumer Willis says her little girl “loves” going to see her dementia-battling granddad Bruce. The actress, 35, had daughter Louetta in April 2023 with her singer partner Derek Richard Thomas, 42, and says its “sweet” when she watches her play with her ‘Die Hard’ actor grandfather, 69, who was forced to retire from acting after he was hit with his diagnosis of frontotemporal dementia in 2022. Rumer – who Bruce had with his 61-year-old ‘G.I. Jane’ actress ex-wife Demi Moore – told People: “(My dad) is doing really good. I got to go over there with Louetta today. “It’s so sweet. Louetta honestly i…