Ever since Kathy Brown was diagnosed with primary peritoneal cancer in 2018, her husband Andy has been at her side. He drives her to appointments, helps with housework, cares for their 14-year-old son and helps keep Kathy’s spirits lifted.

“He’s been phenomenal,” Kathy says. “You never know how strong your marriage is until one of you has cancer. He has taken on everything and has never complained.” 

Kathy often refers...