أحب شخصية صديقي.

A careful MSA pronunciation is:

uḥibbu shakhṣiyyata ṣadīqī

A rough English-friendly guide:

• uḥibbu = oo-HIB-boo
• shakhṣiyyata = shakh-see-YA-ta
• ṣadīqī = sa-DEE-qee (with a heavy ṣ sound)

In full vowel marking, it would be:

أُحِبُّ شَخْصِيَّةَ صَدِيقِي

Because the verb أحب already means I like / I love.

In Arabic, the subject is often built into the verb. So:

• أحب = I like / I love

The pronoun أنا is understood automatically. You can add it and say:

أنا أحب شخصية صديقي

but it is not required.

It can mean either love or like, depending on context.

So أحب may be translated as:

• I love
• I like

In this sentence, English might naturally say I like my friend's personality, although I love my friend's personality is also possible if the feeling is stronger.

شخصية means personality.

Depending on context, it can also be understood as character in a broad sense. In this sentence, it refers to the person's personal qualities or nature.

So it is the thing being liked:

• أحب = I like
• شخصية = personality

Because ة is taa marbuuTa.

When you stop on the word by itself, it is often pronounced like -ah:

• شخصية → shakhṣiyyah

But when the word is connected grammatically to what follows, especially in an iḍāfa construction, the ة is pronounced as t:

• شخصية صديقي → shakhṣiyyata ṣadīqī

So the t sound appears because the word is not being pronounced in isolation.

Because شخصية صديقي is an iḍāfa construction, often called a construct phrase.

In an iḍāfa:

• the first noun usually does not take ال
• the first noun also does not take tanween
• the whole phrase becomes definite if the second noun is definite

Here:

• شخصية = personality
• صديقي = my friend

Since my friend is definite, the whole phrase is definite:

• شخصية صديقي = my friend's personality / the personality of my friend

Arabic usually expresses possession by putting two nouns together in an iḍāfa construction.

So instead of saying:

• personality of my friend

Arabic says:

• شخصية صديقي
• literally: personality my-friend

This structure covers meanings that English often expresses with:

• of
• apostrophe-'s

The ending -ي means my.

So:

• صديق = friend
• صديقي = my friend

That -ي is an attached possessive pronoun. In this sentence, it tells you whose personality is meant:

• شخصية صديقي = my friend's personality

It is accusative, because it is the direct object of أحب.

The speaker is liking something, and that thing is شخصية صديقي.

In fully vowelled Arabic, the first word would be:

• شخصيةَ

So the full form is:

• أُحِبُّ شَخْصِيَّةَ صَدِيقِي

Also, because شخصية is the first noun in an iḍāfa, it does not take tanween.

It is genitive, because it is the second noun in the iḍāfa.

In Arabic grammar, the second term of an iḍāfa is genitive.

Here:

• شخصية = first term
• صديقي = second term

So صديقي is genitive in function, even though the usual case ending is not clearly visible in normal spelling because of the attached -ي (my).

There are two reasons:

1. شخصية is the first noun in an iḍāfa, and the first noun in an iḍāfa does not take tanween.
2. صديقي has an attached possessive suffix (-ي, my), and nouns with attached pronouns do not take tanween either.

So the absence of tanween here is completely normal.

Yes, absolutely.

Both are correct:

• أحب شخصية صديقي
• أنا أحب شخصية صديقي

The version without أنا is very normal, because the verb already tells you the subject is I.

The version with أنا can sound more explicit or emphatic:

• I like my friend's personality.

Yes. This is normal Arabic word order.

The sentence begins with the verb:

• أحب = I like

Then comes the object:

• شخصية صديقي = my friend's personality

So the pattern is basically:

• verb + object

That is very common in Arabic, especially when the subject pronoun is already understood from the verb.