 Montague argues that Romeo has justly executed Tybalt for the murder of Mercutio . The Prince , now having lost a kinsman in the warring families ' feud , exiles Romeo from Verona , under penalty of death if he ever returns . Romeo secretly spends the night in Juliet 's chamber , where they consummate their marriage . Capulet , misinterpreting Juliet 's grief , agrees to marry her to Count Paris and threatens to disown her when she refuses to become Paris 's " joyful bride " . When she then pleads for the marriage to be delayed , her mother rejects her . 
