All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger. We ask Allaah to exalt his mention as well as that of his family and all his companions.
A husband leaving his wife could be due to normal reasons. These reasons might have been caused by the husband or the wife, or by both of them. Therefore, one should try to find out the reason and each of the spouses should be frank to the other while seeking to reconcile, as reconciliation is good for the family. Moreover, you should avoid separation as separation has always bad consequences.
Hence, we advise you to find out the reasons and try to find a way to sit with your husband. Each one of you should try to solve the part of the problem which is caused by him. If it is not possible to sit with your husband to discuss this matter, then you should appoint a group of pious and rational people from your family (or others) in order to discuss the matter with him or appoint some pious and rational people from his family so that they may try to convince him. If the problem is solved, then this is what is sought. However, if the efforts of reconciliation are of no avail and you predominantly think that the reason could be magic, then you should try to convince him to seek treatment. For more benefit on how to treat magic, please refer to Fataawa 90787, 88574 and 81667.
Nonetheless, you should not forget to earnestly ask Allaah so that He may reconcile between you; indeed there is much good in supplications.
Ultimately, if the problem is not solved and you fear to be harmed by staying in this condition, then it is permissible for you to ask him to divorce you. If he accepts and divorces you, then this is what is required, otherwise you may take the matter to an Islamic centre so that they would study the matter and remove the harm off you (by divorcing you from him).
Allaah Knows best.