Help me understand my Shakespeare monologue?

I'm learning this monologue for an audition and I really want to make sure that I have the right emotions and context in mind while I memorize. It's from Two Gentlemen of Verona, it's Julia's monologue after she rips up Proteus' letter.

Nay, would I were so angered with the same

Oh hateful hands, to tear such loving words!

Injurious wasps, to feed on such sweet honey

And kill the bees that yield it with your stings.

I'll kiss each several paper for amends.

Look, here is writ 'kind Julia.' Unkind Julia!

As in revenge of thy ingratitude

I throw thy name against the bruising stones

Trampling contemptuously on thy disdain.

And here is writ 'love-wounded Proteus!'

Oh poor wounded name! My bosom as a bed

Shall lodge thee til thy wound be thoroughly healed

And thus I search it with a sovereign kiss.

But twice or thrice was 'Proteus' written down.

Be calm, good wind, blow not a word away

Til I have found each letter in the letter.

Except mine own name: that some whirlwind bear

Unto a ragged and fearful-hanging rock

And throw it thence into the raging sea.

Lo, here on one line is his name twice writ.

'Poor forlorn Proteus, passionate Proteus,

To the sweet Julia:' that i'll tear away

Yet I will not, sith so prettily

He couples it to his complaining names.

Thus will I fold them one on another

Now kiss, embrace, contend, do what you will.

I understand it overall, but I want general context subtleties...like, for example, did she already rip up the letter or is she in the process of it when she realizes it's a bad idea? And, while saying these lines, is she trying to put the letter back together? She's still in love with Proteus? What does she go on to do after this monologue is over?

Anything helps, but serious answers only, please. :)