Wasn't Catherine a member of the Spanish royal house? They were quite powerful and not to be annoyed.
Catherine was the youngest daughter of Ferdinand and Isabella of Span, and the aunt of Charles V, Holy Roman Emperor. She was a gracious, cheerful, charitable, and deeply religious woman, like her husband fond of music and dancing, literate in three languages (English, Spanish, and Latin), popular with the English people, and utterly devoted to her husband, Henry VIII.
None of this helped her when Henry decided he wanted Anne Boleyn. Henry humiliated Catherine in public, forcibly separated her from their little daughter Princess Mary (whom he officially declared to be a bastard), and locked her up in an isolated, cold, damp place called Kimbolton where he hoped she'd get sick and die: which she did, two years after the divorce.
All of Henry's wives were most unfortunate (he killed two of the six), but I feel sorriest for Catherine because she was good-hearted, and because she really loved him.