Right, Lolita representing America.
I thought it was supposed to be an allegory of how Europeans (including Russians) see and perceive America, without having been here.
Humbert Humbert idolizes Lolita, ruins his life over her, only to find out that she's just an ordinary young female. He builds her into a dream figure, but its all in her mind. She's just a dizzy teenager, who thinks about little beyond the tip of her own cute nose.
In the end she marries a guy named Biff, or Boff, who she hardly knows, gets pregnant and moves to Alaska, shrugging as she says good-bye.