Praise be to Allah, the Lord of the Worlds; and may His blessings and peace be upon our Prophet Muhammad and upon all his Family and Companions.
Know that the husband and the wife should do their best to solve their problems and each one should fulfill the other’s rights. They should discuss their problems openly to remove any misunderstanding or conflict. The husband should make sure that his relation with his wife remains kind and serene. Allaah Says (interpretation of meaning):And live with them honourably[4:19]. Allaah also Says (interpretation of meaning): either take them back on reasonable basis or set them free on reasonable basis[2:231].
The Prophet said:"Accept my advice: be kind with women" [Muslim]. The wife should also keep obeying her husband. It is forbidden upon her to spend a night in the home deserting him let alone traveling to a foreign country without his permission.
The Prophet said:If the woman prays her obligatory prayers, fasts her month (Ramadan), protects herself from Zina and obeys her husband, she enters
Having established the above, you can solve the problems with your husband by returning to wedlock life, obeying him, then asking him for Kh’ulu’.
Ibn Katheer and Ibn Qudaamah said:The woman who hates her husband and cannot stand staying with him, is allowed to redeem herself from him and he is allowed to accept that.
Al Buhooty in ‘Kashaf Al Qina’e’ mentioned that it is Sunnah for the husband to accept his wife’s demand for K’hulu’.
The evidence for this is the Hadith reported by Al-Bukhari. Narrated Ibn Abbaas that ‘the woman of Thaabit Ibn Qays came to the Prophet and said: ‘O Prophet of Allaah! I do not reproach any bad character to Thaabit Ibn Qays as far as his behaviour or his religion. But I hate disbelief after having embraced Islam.’ The Prophet said: "Can you give him back his garden?" She said: ‘Yes’. Thereupon the Prophet said: "Accept the garden and divorce her one divorce".
Allaah knows best.