Não quero outra briga, porque gosto do nosso relacionamento.

In Brazilian Portuguese, the subject pronoun is often omitted when the verb form already makes the subject clear.

• quero = I want
• So Não quero naturally means I don’t want

You could say Eu não quero, but it is not necessary here. Adding eu can sound more emphatic, as if you are stressing I.

In Portuguese, não usually goes directly before the verb to make it negative.

• quero = I want
• não quero = I do not want / I don’t want

This is the normal and standard position for negation in simple sentences.

Outra means another or one more.

It changes form to match the gender of the noun it describes:

• outro for masculine nouns
• outra for feminine nouns

Since briga is a feminine noun, you say:

• outra briga

not

• outro briga

Briga usually means fight, argument, or quarrel.

In this sentence, it most likely refers to an emotional or verbal conflict between two people, not necessarily a physical fight. In relationship contexts, briga very often means argument.

Here, porque means because. It introduces the reason for what was said before:

• Não quero outra briga = I don’t want another fight
• porque gosto do nosso relacionamento = because I like our relationship

This is the standard spelling when you are giving a reason.

A common learner issue is that Portuguese has several similar forms:

• porque = because
• por que = why / for what reason
• porquê = the reason
• por quê = why, usually at the end of a phrase

In this sentence, only porque fits.

The verb gostar normally requires the preposition de.

So in Portuguese, you do not say the equivalent of I like our relationship directly. You say the equivalent of I like of our relationship:

• gosto de chocolate
• gosto de música
• gosto do nosso relacionamento

This is very important, because English like does not use a preposition, but Portuguese gostar usually does.

Do is the contraction of de + o.

• de + o = do

So:

• gosto do nosso relacionamento literally contains:
• gosto de o nosso relacionamento

In natural Portuguese, that combination contracts to do.

Also, in Brazilian Portuguese, it is very common to use the definite article before possessives:

• o meu carro
• a minha casa
• o nosso relacionamento

So do nosso relacionamento is very natural.

Because Brazilian Portuguese often uses a definite article before possessive words like meu, seu, nosso, etc.

So these are common:

• o meu livro
• a sua irmã
• o nosso relacionamento

This article is often omitted in some varieties or in certain contexts, but in Brazilian Portuguese, using it is extremely common and sounds natural.

Nosso means our, so it refers to something shared by both people.

That makes sense here because a relationship belongs to both partners, not just one. Saying meu relacionamento is possible in some situations, but nosso relacionamento emphasizes the shared nature of the relationship.

Yes, absolutely.

Adding eu is grammatically correct:

• Eu não quero outra briga, porque gosto do nosso relacionamento.

Without eu, it sounds natural and neutral. With eu, it can sound a little more explicit or emphatic.

Both are correct.

Yes, in many cases you could, but the tone changes a little.

• Não quero outra briga, porque gosto do nosso relacionamento.
• Não quero outra briga, pois gosto do nosso relacionamento.

Both mean roughly the same thing, but porque is more common in everyday speech. Pois can sound a bit more formal or literary depending on context.

Yes, relacionamento is a very normal word for relationship, especially in a romantic sense.

Other possibilities exist, but they are not always interchangeable:

• relação can mean relationship, but it is broader and sometimes less personal
• namoro means dating relationship
• casamento means marriage

So nosso relacionamento is a good, natural choice if the speaker wants a general romantic meaning.

Não is one of the most important words to learn well.

A few pronunciation notes:

• It is roughly like nowng but nasalized
• The ão sound is nasal, which English does not really have
• The final sound does not end like a clear English ow

If you are practicing, focus on making the vowel nasal rather than fully pronouncing a final consonant.

In relacionamento, the lh combination sounds like the lli in million for many English speakers, though not exactly the same.

A rough guide:

• re-la-cio-na-men-to

The lh sound actually appears in words like relacionamento? No — it does not appear there. This is a good thing to notice: learners sometimes expect tricky spellings, but relacionamento is spelled with l, not lh.

The word is long, but it is phonetic enough once you break it into syllables.

Yes. Depending on context, outra briga can mean:

• another fight
• one more fight

It often suggests that there has already been at least one previous fight, and the speaker does not want a new one to happen.

If you wanted to make the idea of repetition even more explicit, Portuguese could also use mais uma briga, but outra briga is completely natural.

Yes, but the original order is very natural.

Original:

• Não quero outra briga, porque gosto do nosso relacionamento.

You could also say:

• Porque gosto do nosso relacionamento, não quero outra briga.

That version puts the reason first. It is grammatically correct, but the original sounds more conversational and direct in many situations.

It is neutral and natural. It works well in everyday speech and also in writing.

Nothing in it is slang, and nothing is especially formal either. It sounds like a normal, sincere sentence someone might say in a relationship conversation.