There is so much wrong info here. First, Bosie's father left a card at Oscar's club reading, "To Oscar Wilde posing somdomite (sic)." Oscar sued Queensberry for libel. Oscar lost the case because Queensberry hired detectives who ferreted out witnesses (boy prostitutes and others) who gave evidence against Oscar. The Crown then prosecuted Oscar for "gross indecency" and convicted him to two years hard labor. If Oscar hadn't lied to his counsel, if he hadn't brought the suit, if he had left London between the trials, he would not have ended up in prison.

Oscar never had TB. He fell in prison, damaged his ear, and it abcessed / wasn't properly treated. He was released in 1897. The ear injury became more infected between 1897 and 1900. The infection caused meningitis, which caused him great pain and killed him.

His lover, Lord Alfred Douglas (Bosie) never wanted to be discreet.

References: Richard Ellman's Oscar Wilde, Hesketh Pearson's books, over 200 biographies and memoirs written about Wilde from 1905 onward. Oscar's own work from prison called, "De Profundis" (unabridged version).