Why do Tybalt and Romeo fight?
Mercutio forces the fight on Tybalt. Tybalt is really only
interested in Romeo, but Romeo is not disposed to quarrel with his
wife's cousin. Mercutio takes up the quarrel on Romeo's behalf for
no reason other than that he is quarrelsome.
Mercutio and Tybalt fought because Tybalt had challenged Romeo
to a fight but Mercutio knew that Romeo was not strong enough to
fight Tybalt so Mercutio took the burden of fighting Tybalt and
eventually dies when he is stabbed by Tybalt under Romeo's arm.
Romeo had ran out to block the fight and Mercutio got stabbed.
Tybalt leaves, and then returns clearly angry. He is then slain by
Romeo and the Prince, Montague, and Capulet and Lady Capulet come
out. Romeo exits, and Romeo is banished.