my first tagalog (Paumanhin)

Ito po si Abdullah =  This is Abdullah

Ako po si Abdullah = I am Abdullah

mahal kita = I love you (This is something you say to your wife, girlfriend, or child, for example.  However, if you wanted to say this in a tone consistent with your four other sentences, then it should be, "mahal ko kayo".)

"Mahal ko kayo" also means, "I love you" but addressed to a:

(1) 2nd person singular, formal - for example, to your father, an aunt, a superior, a stranger;

(2) 2nd person, plural - for example, to your parents, your family, your friends, strangers.