Wherefore* storm you so?

"Romeo, the love I bear thee can afford
 No better term than this: thou art a villain."

I share Tybalt's opinion. Most people tend to associate Romeo with love. This makes sense if one takes into account that he spends the majority of the play moaning about it. First he moans about Rosaline, who does not care for him. Then he moans about Juliet, who does. Before long he moans that he is doomed. Moaning moaning moaning. Interspersed with this, he moans that he does not like to dance ("I have a soul of lead/So stakes me to the ground I cannot leave") and moans about his banishment ("...exile hath more terror in his look/Much more than death"). He even moans about being a Montague, which is slightly more understandable, but still irritating (and hardly romantic). No wonder Tybalt wants to murder him! He does nothing but whine! Tybalt is fed up with this constant complaining. (He would have made an excellent PE teacher if Romeo hadn't stabbed him.)
Capulet asks Tybalt, "Wherefore* storm you so?" e. g., why are you so angry? When Tybalt explains to him that he has sighted Romeo (whom he calls "villain" three times in three lines), Capulet essentially tells him to chill out. However, Tybalt's anger is well justified. Romeo, the incessant moaner, has attended his party uninvited. If Tybalt shouldn't strike him dead, he at least should be allowed to remove him from the celebration. Unfortunately Capulet disagrees, letting Romeo stay. It's quite understandable that Tybalt sees him as annoying and rude.


*This does, in fact, not mean "where," but "why."