I am an Arabic learner too. I learnt this from a friend. :)
I miss you - أفتقدك (Aftakedak) < when talking to male
I miss you - أفتقدك (Aftakedek) < when talking to female
I love you - أنا أحبك - Ana Uhebbuka < when talking to male
I love you - أنا أحبك - Ana Uhebbuki < when talking to female
If I am not mistaken, those expressions are Standard Arabic.