What is Tybalts attitude towards Romeo being at the party?

Tybalts attitude towards Romeo being at the party is one of hostility and anger. Tybalt is a member of the Capulet family, who are bitter rivals of the Montagues, to which Romeo belongs. When Tybalt learns that Romeo is at the Capulet ball, he is enraged and immediately suggests to his uncle Capulet that they should kill Romeo. He argues that Romeo's presence is a deliberate provocation and that he should not be allowed to leave the ball alive. Tybalt's attitude is fueled by his hatred for the Montagues and his desire to avenge the death of his cousin Mercutio, who was killed in a fight with Romeo earlier in the play.