Tybalt argues that “It fits when such a villain is a guest. I’ll not endure him.” (1.5.82-83). This gives evidence that Tybalt either hates Romeo, or he’s doing this just because he hates the house (Montague) that Romeo is from. And finally, the last, but most important point, is the fact that Tybalt fights with Mercutio. In Act 3, Tybalt gets in an argument with Mercutio. And when Romeo shows up, and acts passive toward him, he gets mad enough that he decides to fight Mercutio. They fight, and Romeo tries to get between them to get them to stop fighting. But when Romeo actually does get between them, Tybalt sees his chance and thrusts his sword under Romeo’s arm, stabbing and killing