How to Please Your Husband in Islam
Question

My husband and I have been married for nearly 6 months. We are having re-occuring problems regarding how much sex we have. My husband has strong needs in this area, which he has told me about many times. 

I have tried hard to meet his needs, but find myself unable to keep up with him for more than a week or so. I become very tired, and feel physically unable to do this.
My husband now finds the situation hard to deal with, and often separates from me - within the home. I understand that it is my obligation to respond to his needs, but what are our rights to each other in the case that one finds it hard to keep up with the other, even though their intention is to please them. Is my husband allowed to separate from me in this way?
Also is he allowed to come to me for such relations when we have had an argument and have not been speaking to each other?
We are, alhumdulillah, very happy together otherwise and love and respect each other very much, and would like to find an Islamic resolution to remove this problem from our marriage.
Praise be to Allah.Husband and wife relationship in bed
The husband is obliged to treat his wife in a kind and reasonable manner. Part of that kind and reasonable treatment is intercourse, which he has to do. The majority of scholars set the time limit beyond which it is not permissible for the husband to forgo intercourse at four months, but the correct view is that there is no time limit; the husband should have intercourse with his wife according to what satisfies her.  
Ibn Qudamah (may Allah have mercy on him) said: 
“Intercourse is obligatory upon the man if he has no excuse. This was also the view of Malik.” (Al-Mughni, 7/30) 
Al-Jassas said: 
“He (the husband) is obliged to have intercourse with her, because Allah says (interpretation of the meaning): 
“…so as to leave the other hanging (i.e. neither divorced or married)…” [al-Nisa 4:129]
meaning, neither divorcing her so that she can marry another nor leaving her without a husband because he is not fulfilling his duty of having intercourse with her.” (Ahkam al-Quran, 1/374 
Shaykh al-Islam (may Allah have mercy on him) said: 
“It is obligatory upon the husband to have intercourse with his wife according to what will satisfy her, so long as this will not harm him physically, or keep him from earning a living, and that is not restricted to four months.” (Al-Ikhtiyarat al-Fiqhiyyah, p. 246)
Can a wife refuse her husband’s bed?
It is obligatory for the wife to obey her husband if he calls her to his bed. If she refuses she is sinning. 
Abu Hurayrah (may Allah be pleased with him) narrated that the Prophet (peace and blessings of Allah be upon him) said: “If a man calls his wife to his bed, and she refuses to come, the angels curse her until morning comes.”  (Narrated by al-Bukhari, 3065; Muslim, 1436)
Shaykh al-Islam [Ibn Taymiyah] said: 
“She must obey him if he asks her to come to his bed, and that is obligatory upon her. If she refuses to come to his bed, she is a defiant sinner… as Allah says (interpretation of the meaning): 
“As to those women on whose part you see ill-conduct, admonish them (first), (next) refuse to share their beds, (and last) beat them (lightly without causing pain and injury, if it is useful); but if they return to obedience, seek not against them means (of annoyance)” [al-Nisa 4:34]” (al-Fatawa al-Islamiyyah, 3/145, 146)
It is not permissible for a husband to force his wife to do more than she is able to bear of intercourse. If she has an excuse such as being sick or unable to bear it, then she is not sinning if she refuses to have intercourse.
 Ibn Hazm said: 
“It is obligatory on slave women and free women alike not to refuse their masters or husbands if they call them, so long as the woman who is called is not menstruating or sick in such a way that intercourse will be harmful to her, or observing an obligatory fast. If she refuses with no excuse, then she is cursed.” (Al-Muhalla, 10/40)
Al-Bahuti said: 
“The husband has the right to enjoy intimacy with his wife at any time… so long as he does not distract her from obligatory religious duties or harm her. In that case, he does not have the right to intimacy with her without her permission, because that is contrary to the idea of reasonable and kind treatment. So long as he does not distract her from that and does not harm her, then he has the right to intimacy.” (Kashf al-Qina’, 5/189)
What to do when your husband expects sex all the time
The wife whose husband harms her by having intercourse with her too much can agree with her husband on the number of times that she can bear. If he does more than that to the point that he harms her, she can refer the matter to the qadi (judge), and the qadi can determine the number of times that the husband and wife should stick to. 
Shaykh al-Islam Ibn Taymiyah said:  
“The husband should have intercourse with his wife according to what satisfies her, so long as that does not harm him physically or keep him from earning a living; it is not limited to four months. 
If they argue, then the judge should decide on the number of times, just as the judge should decide on the level of spending on a wife.” (Al-Ikhtiyarat al-Fiqhiyyah, p. 246)
Because there are no Shari’ah courts nowadays in your country, the wife should try to come to an agreement with her husband on this matter, so she should speak to him frankly and remind him of the verses and ahadith that command the husband to be kind to his wife. She should explain to him that she is only refusing because of the harm that is being caused to her, and that she is very keen to obey him and respond to his desires. Our advice to the sister is that she should be patient with her husband and put up with it as much as she can, and she should note that she will be rewarded for that by Allah.
 The husband has to fear Allah with regard to his wife, and not make her do more than she is able to do. He should be kind to his wife and treat her in a reasonable manner. If his desire is so strong that one wife is not enough for him, then why does he not try to look for a solution to this problem that is affecting his relationship with his wife, or which may lead to something even worse, which would be looking to satisfy his desire in haram ways?  
One of the solutions that would help to solve this problem is to take a second wife. Allah has permitted men to marry up to four, on condition that he treat them all fairly. Another solution would be to fast a lot, because fasting reduces desire. And another solution would be to take medicine that will reduce his desire, subject to the condition that this will not cause him any harm. 
And Allah is the One Whom we ask to set the Muslims’ affairs straight. 
For more, please see these answers: 23390 and 193320 .
And Allah knows best.