Portia in julius caesar act II scene I?

Question

i'm trying to analyse this passage but i don't understand how portia is feeling or even what the language means! someone help?

Nor for yours neither. You've ungently, Brutus,

Stole from my bed: and yesternight, at supper,

You suddenly arose, and walk'd about,

Musing and sighing, with your arms across,

And when I ask'd you what the matter was,

You stared upon me with ungentle looks;

I urged you further; then you scratch'd your head,

And too impatiently stamp'd with your foot;

Yet I insisted, yet you answer'd not,

But, with an angry wafture of your hand,

Gave sign for me to leave you: so I did;

Fearing to strengthen that impatience

Which seem'd too much enkindled, and withal

Hoping it was but an effect of humour,

Which sometime hath his hour with every man.

It will not let you eat, nor talk, nor sleep,

And could it work so much upon your shape

As it hath much prevail'd on your condition,

I should not know you, Brutus. Dear my lord,

Make me acquainted with your cause of grief.

Answer 1

portia is brutus's wife. his behaviour is strange as he is involved in killing C.Infact his stabbing made C say Et tu Brute >hence portia is anxious in seeing Brutus in grief