What is Montag’s wife addicted to

Guy Montag's wife, Mildred, is hopelessly addicted to modern technology, especially TV, which she spends an inordinate amount of time watching on giant screens around the house. To a disturbingly large extent, she lives her life in a world of fantasy, one that is much more real to her than her family life. Indeed, the family in the soap opera she religiously watches is more of a family to her than her own flesh and blood.
Television provides Mildred with a means of escape from an existence that is hard to deal with on an emotional level. So completely immersed is she in this bright, shiny fantasy world that she seems blissfully unaware of her own suicide attempt. Life's just too much for Mildred to handle; she lacks the appropriate psychological resources. And the dystopian state in which she lives is not much help, being both unable and unwilling to ameliorate mental distress and its effects. All it can ever do is distract people, serving up mindless pabulum for the entertainment of the masses, diverting their attention from thinking for themselves and reflecting upon the horrors of life in this bibliophobic hell.