صديقتي اتصلت فيني لما وصلت عالبيت.

It is صديقة + ـي.

• صديقة = female friend
• ـي = my

So صديقتي means my female friend.

A male friend would be صديقي.

Sometimes, yes, but not automatically.

In everyday Arabic, صديقتي usually just means my female friend. If the context is clearly romantic, it can be understood as my girlfriend, but the word by itself does not force that meaning.

Because this is the past tense form, and in Arabic that ending is part of the past-tense conjugation.

Here, with صديقتي as the subject, اتصلت means she called.

A useful thing to know: in normal Arabic spelling without vowel marks, اتصلت can also look like I called or you called. Context tells you which one is meant.

Because اتصل in Levantine is normally used with a preposition when you say who someone called.

So the pattern is:

• اتصل فيني = called me
• not a direct-object pattern like *اتصلتني

This is just how the verb works in the dialect.

Here فيني is:

• في = a preposition
• ـني = me

So grammatically it is in/on/at me, but after اتصل it simply means me in the sense of called me / contacted me.

So do not translate it too literally here.

No. It is a very normal Levantine phrasing, but different regions and speakers may use other patterns too.

For example, you may also hear other verbs or prepositions in colloquial speech. But اتصلت فيني is absolutely a natural structure to know and understand.

Here لما means when.

In this kind of sentence, it often has the sense of:

• when
• once
• as soon as

depending on context.

So لما وصلت عالبيت can feel like when I got home or once I got home.

No. That is a different word/function.

In this sentence, لما is a time word meaning when.
So here it is not not yet.

In writing by itself, وصلت can be ambiguous.

Depending on context, it could mean:

• I arrived
• she arrived

So the sentence could theoretically mean either:

• My female friend called me when I got home
• My female friend called me when she got home

Usually the context or the already-given meaning tells you which one is intended.

Because Arabic verbs usually already contain the subject.

So وصلت by itself can already express the subject, and Arabic often leaves pronouns out unless they are needed for:

• emphasis
• contrast
• clarification

That is why a separate أنا or هي is not necessary here.

You can add a pronoun for clarity.

For example:

• صديقتي اتصلت فيني لما أنا وصلت عالبيت = My friend called me when I got home
• صديقتي اتصلت فيني لما هي وصلت عالبيت = My friend called me when she got home

In natural conversation, though, speakers often leave it ambiguous if the context already makes it clear.

عالبيت is a spoken contraction of على البيت.

So:

• على
  • البيت → عالبيت

This kind of contraction is extremely common in Levantine Arabic.

Because in Levantine, وصل على / وصل عـ... is a normal way to say arrive at / arrive to a place.

So:

• وصلت عالبيت = I arrived home / at the house

This is a dialect feature. In more formal Arabic, learners often meet other prepositions, but in Levantine this phrasing is very natural.

It can mean either one, depending on context.

In this sentence, the most natural English rendering is usually home:

• وصلت عالبيت = I got home

Even though the literal noun is the house, Arabic often uses البيت where English would prefer home.

Yes, it is completely normal.

Starting with صديقتي gives you a very natural everyday Levantine sentence:

• صديقتي اتصلت فيني... = My friend called me...

Arabic can also start with the verb, but subject-first order is very common in spoken Levantine, especially in ordinary conversation.