Emma Heming Willis feels closer than ever to husband Bruce Willis as he battles frontotemporal dementia. "I feel like our love story has only grown and developed more," she told People in an interview published on Wednesday, September 3. "The way I feel for Bruce is ... It's just on a more sort of cellular level." Frontotemporal dementia (FTD) can "gradually rob people of basic abilities - thinking, talking, walking and socializing - that most of us take for granted," per the National Institute of Aging.