Helen Fung’s home felt empty. After her husband died last October, she found herself rattling around a house in Singapore with only a domestic helper she could not get along with for company.She turned down her children’s invitations to move to England, put off by London’s grey winters, and instead checked herself into an assisted living facility.On a recent Monday afternoon in St Bernadette Lifestyle Village at Trevose Crescent, tucked away in the leafy residential estate of Bukit Timah, Fung...