Praise be to Allah.
We ask Allaah to relieve your distress, make things easy for you, console you in your loneliness, guide your husband and heal you of your sickness… Ameen.
Your question includes a number of matters, both issues of fiqh and social problems… Perhaps it is best if we look at each problem by itself so as to reach a useful solution.
The first problem is that your husband seems to have reneged on fulfilling the condition which he agreed to when he married you, which was that you should complete your studies. It is not permissible (for him to renege on the conditions of the marriage contract), because the Prophet (peace and blessings of Allaah be upon him) said: “The conditions which are most deserving of being fulfilled are those by which it becomes permissible for you to engage in intimacy” (Narrated by al-Bukhaari, 2721; Muslim, 1418), i.e., the conditions of the marriage contract which are stipulated by the woman or her guardian; but it should be noted that these conditions should not go against the Book of Allaah.
So your husband must fulfil this condition, and not prevent you from studying.
With regard to the costs of study and the choice of a university, reference should be made to the details of the condition; if you did stipulate the condition that he has to pay your fees or let you study at a particular university, then he has to honour that. If you did not stipulate these details, then he is only obliged to let you study.
With regard to your intention to stay there and not travel with your husband, if you will be staying in a safe place then it is permissible for you to do that, otherwise it is not. All of this depends on your study being acceptable by Islamic standards, but if it involves mixing of men and women or other objectionable matters as happens in many universities, then it is not permissible for you to study there or for your husband to honour this condition at all.
The second problem is that he does not have enough time to sit with you.
The answer to this problem is that he can find time, but it needs sound planning, a revision of priorities and an understanding of rights and duties.
We remind you that your husband’s being busy with righteous deeds is a blessing; perhaps you might give him a break and praise Allaah that he is not busy with sinful things as is the case for many wives who are suffering because their husbands neglect their families and are preoccupied with sinful activities.
It seems that your husband does not fully understand the priorities of the Islamic sharee’ah, and that there is a lack of balance in his approach to Islamic duties. Perhaps one aspect of the religion has distracted him from another aspect. He should be reminded of the aayah in which Allaah says (interpretation of the meaning):
“O you who believe! Ward off yourselves and your families against a Fire (Hell) whose fuel is men and stones”
And the Prophet (peace and blessings of Allaah be upon him) said: “Your family has rights over you.”
He should also pay attention to the order in which Islam tells us to direct our da’wah efforts, so he should start with himself, then his wife and children, then all his relatives, the closer ones before the more distant ones. It is important for you to make him realize that you are not opposed to his da’wah efforts and that you are not an obstacle in the way of his striving for the sake of Allaah, but you want the rights that Islam gives you.
Tell him to make you one of the targets of his da’wah, one of the people whom he pays attention to and follows their progress. Tell him to make his children one of his da’wah projects that he undertakes. For more information see question no. 6913.
After this problem is resolved, we are sure – in sha Allaah – that the third problem will be resolved, which is your feelings of hatred towards your husband as a result of his bad treatment of you, because this feeling is simply a reaction to his neglect of you, and when the cause, his neglect of your rights, is no longer there it will disappear. At the same time, make lots of du’aa’ asking Allaah to open his heart to you and your heart to him, because the Shaytaan is keen to cause division between a man and his wife, and the hatred that exists in your heart is no more than the promptings of the Shaytaan, so seek refuge with Allaah from his evil.
The fourth problem:
The husband is not fulfilling his obligations towards his wife and children, and instead he is spending on his parents.
This action on the husband’s part involves both right and wrong. What he is doing right is spending on his parents and siblings, but where he is going wrong is his neglect of spending on his wife. This is going against his duty, because a man’s duty is to give his wife precedence over his brothers when it comes to spending, because of the report narrated by Abu Dawood in his Sunan (1691) from Abu Hurayrah (may Allaah be pleased with him) who said: “The Prophet (peace and blessings of Allaah be upon him) enjoined charity. A man said, ‘O Messenger of Allaah, I have a dinar.’ He said, ‘Spend it in charity on yourself.’ He said, ‘I have another.’ He said, ‘Spend it in charity on your child.’ He said, ‘I have another.’ He said, ‘Spend it in charity on your wife.’ He said, ‘I have another.’ He said, ‘Spend it in charity on your servant.’ He said, ‘I have another.’ He said, ‘You know best (where to spend it).” (Classed as hasan by al-Albaani in Saheeh Sunan Abi Dawood, 1483).
If your husband persists in not spending on you and your needs, then you have the right to take from his wealth what is sufficient for you and your children, even if you do that without his permission, without being extravagant or causing mischief, because of the hadeeth of ‘Aa’ishah (may Allaah be pleased with her), who said that Hind bint ‘Utbah said, “O Messenger of Allaah, Abu Sufyaan is a stingy man and he does not give me enough for myself and my child unless I take it from him without his knowledge.” He said, “Take what is sufficient for you and your child, on a reasonable basis.” (Narrated by al-Bukhaari, 5364).
We ask Allaah to reconcile you both and make things easier for you both. Praise be to Allaah, the Lord of the Worlds.