upset
The Italian word 'arrabbiato' is used to express the state of being upset or angry. It can be used in a sentence like 'Sono arrabbiato con te' which means 'I am upset with you'.
I'm very angry with you.
This sentence expresses the speaker's high level of anger targeted specifically towards the person they are speaking to. 'Sono' is the first person singular form of 'essere' (to be), 'molto' means 'very', 'arrabbiato' is 'angry', 'con' is 'with', and 'te' is 'you'.
I don't want to talk to you because I'm angry.
In this sentence, the speaker is communicating their desire to not engage in conversation due to their current state of anger. 'Non voglio parlarti' translates to 'I don't want to talk to you', 'perché' means 'because', and 'sono arrabbiato' is 'I am angry'.
When he becomes angry, he prefers to be alone.
This sentence describes someone's preference to be alone when they are angry. 'Quando diventa arrabbiato' means 'When he becomes angry', and 'preferisce stare da solo' translates to 'he prefers to be alone'.