What does it mean to have a half-life relationship with alcohol and tobacco?

Half-life tobacco and alcohol refer to half-life cigarettes and half-life wines. Half-life people have passed and the other half are not drunk. Half-life fate refers to the fate I met in the first half of my life, but I didn't accompany me to the old age. Half-life fate is not a lifetime, but this half-life infatuation needs a lifetime commemoration. It means that my relationship has a good beginning, but it has no good ending. This is a book by Zhang Ailing. The love in the book is full of sadness and helplessness, and it is about everyone's helplessness and the injustice of fate.