Originally Posted by
Sauliha
First things first, please take her to a professional and get a proper diagnosis. Neither you nor her family nor any of us on this thread is qualified to make a diagnosis. When she was with her parents, it was their responsibility to take her to a professional, then when she became your wife, it became your responsibility to do so.
You know best what you've been living with, so I won't downplay your word that you've been living in a tough situation, but before making decisions it's best to do things systematically. If it turns out that she has a diagnosed mental disability, then you do have a right to leave the marriage. But please try to continue helping her with rehabilitation to the best of your ability, for the sake of your child and for sadaqah. May Allah grant you both ease and contentment.