Julia is said to be psychologicly undeveloped.
I dont think she is. Ohpelia is. And Gertrude is. There is more to Julia than just being the sidekick of Romeo. Otherwise we could not do this piece.
And you are quite right Sophie, she does have these scenes where she thinks and feels and decides and acts.
There are fineries in the language she is using, that carry meaning, that we might not pick up on, and these will be lost in the Hungarian traslation certainly.
Just by hecking out 90% of the cast we have lost most of the text, but perhaps it is still worth mentioning that Shakespere writes in many lyric forms - most unknow to the humble reader of the XXI century, that indicate and define the tone of what the craracter motivation is and who they are. It also referrs to social classes as common people tend to speak in prose while posh people use a multitude of poetic forms. There is a good article on wikipedia about that.
Julia for exapmple uses the methaphore of pilgrims when she first meets Romeo and that is supposed to be a new way of poetic expression, both in for and subject indicating that something new begins.
Or the part that you reffered to earlyer, when she finds out that Romeo has killed Tybalt, but she has the strength to look at the situation from a different angle.
Her anger might be forced from the beginning, overacted: the part that we were reharsing with Zsofi, where she is using a lot of oxymorons:
'Fiend angelical, dove feathered raved, wolvish-ravening lamb!'
I have read that oxymorons were considered very artificial and unnatural to emotions, as if she would have to make an extra effort to sound really angry, but the form of expression might already give away that she will forgive Romeo.