The only similarity that can be seen between Tybalt and Romeo is their stubbornness. When Tybalt spies Romeo at the ball in Capulet's house and is prepared to kill him "by the stock and honour of [his] kin," Capulet stops him (Act. I, Scene 5). Capulet argues that Romeo is known throughout Verona "to be a virtuous and well-govern'd youth" and begs Tybalt not to fight him. Tybalt is enraged, saying that he will not "endure" the "villain" and that "'tis a shame." Unwillingly, Tybalt finally agrees, but promises himself that he will still revenge himself on Romeo for intruding on the Capulet house.
Tybalt's unwillingness to yield to his uncle's good judgements and sound reasoning is paralleled in Romeo's unwillingness to listen to Friar Laurence. After Romeo kills Tybalt and is banished, Romeo feels that the world is over and wants to kill himself. Friar Laurence tries to convince Romeo that he should be rejoicing because Tybalt did not kill him, because Juliet is still alive, and because the prince sentenced him to be banished instead of sentencing him to death. Instead, Romeo continues to wail and bemoan his fate, until Friar Laurence must tell him to "hold thy desperate hand," and tell him that his "tears are womanish" (Act. III, Scene 3).
These two quarrels between Tybalt and Capulet and Romeo and Friar Laurence are similar in that both Tybalt and Romeo are equally stubborn. Both refuse to yield to the wiser person.