how much responsibility does the TT vear for Weena 's dead

Gradesaver's analysis of the TT's loss of Weena;

As frequently occurs in adventure stories, the hero makes an ill-planned decision that ends up in tragedy for one of his allies. The TT's forest-fire may thin the ranks of the Morlocks, but in Weena he loses his sole companion. Once again, he is returned to a primal state of emotion. Without her, he feels the basic emotions of loneliness and mourning, as well as the "strange exultation" of violence when he fights the Morlocks. And, of course, the chapter centers around fire, one of man's most important discoveries.

However, to call Weena one of the TT's "allies" is not entirely correct. Though the most intimate contact we witness between them is a kiss at one point and their sleeping next to each other, she fulfills the conventional role of the hero's romantic interest. Though more childlike than womanly, she is the TT's sole source of companionship. As he notes, her affectionate nature makes her seem more human than she really is. If Wells did not include her in the story, the TT's violence against the Morlocks would seem less justified; as it is, he attacks them to avenge her death. This clever device makes us overlook the underlying well of the TT's loathing for the Morlocks: classism. As we see repeatedly, his membership in the ruling class bonds him with the Eloi and makes him resent the Morlocks' reversal of class-based power. His love for Weena humanizes him as much as it does her, and allows Wells to comment on Victorian classism with greater subtlety.