Can the husband’s cheating be justified by blaming his wife for refusing intimacy with him?
Question

                If a husband cheats on his wife, can he blame his wife for his sin or be partially blamed? Not to say that they did not have intercourse for months or so, but refrained from sexual intimacy for a much shorter time (such as a week or more weeks, past the time the menstrual time has ended and intimacy is possible but has not occurred for whatever reason). Can he justify his actions by saying that she will get the sin because he did not fulfill his desires? Can at any point the wife be blamed, if it is a long period of time since sexual intimacy?
Praise be to Allah.
      One of the worst things that the one who has been 
      disobedient towards Allah can do is trying to justify his sin by referring 
      to something that is worse than it and trying to justify his transgression 
      of the sacred limits by making up excuses when he knows that the truth of 
      the matter is that he was overcome by desires, by his nafs (self) that 
      prompts him to do evil, lust that he could not control and a conscious 
      decision to commit this action. 

    And he does this at the time when what the one who has 
    committed an action that is contrary to Islam should do is hasten to admit 
    his shortcomings and ask Allah for forgiveness. Allah, may He be glorified 
    and exalted, loves for His slave who has slipped up and fallen into the mire 
    of immoral actions to hasten to regret it and turn to his Lord, may He be 
    glorified, and admit what he has done, then ask Allah, may He be glorified 
    and exalted, to forgive him, help to do righteous deeds and protect him from 
    evil deeds. Allah, may He be glorified and exalted, says (interpretation of 
    the meaning):

    “And turn in 
    repentance and in obedience with true Faith (Islamic Monotheism) to your 
    Lord and submit to Him, (in Islam), before the torment comes upon you, then 
    you will not be helped”

    [az-Zumar 39:54]

    “And those who, 
    when they have committed Fahishah (illegal sexual intercourse etc.) or 
    wronged themselves with evil, remember Allah and ask forgiveness for their 
    sins; - and none can forgive sins but Allah - And do not persist in what 
    (wrong) they have done, while they know”

    [Aal ‘Imraan 3:135]. 

    We may ponder the story of our father Adam (peace be upon 
    him) and how he hastened to admit his sin and take responsibility for what 
    he had done and for his shortcomings. Allah, may He be exalted, says 
    (interpretation of the meaning):

    “They said: "Our Lord! We have wronged 
    ourselves. If You forgive us not, and bestow not upon us Your Mercy, we 
    shall certainly be of the losers”

    [al-A ‘raaf 7:23].

    So Allah, may He be glorified and exalted, rewarded him by 
    accepting his repentance and forgiving him, by His grace. Allah, may He be 
    glorified, says (interpretation of the meaning):

    “Then Adam received from his Lord Words 
    . And his Lord pardoned him (accepted his repentance). Verily, He is the One 
    Who forgives (accepts repentance), the Most Merciful”

    [al-Baqarah 2:37].

    This is a good example for all of us; we should remember the 
    grace and kindness of Allah, and we should put our trust in Him 
    acknowledging our sins and our wrongdoing towards ourselves, and we should 
    hasten to repent as Allah, may He be glorified and exalted, says 
    (interpretation of the meaning):

    “If they (hypocrites), when they had 
    been unjust to themselves, had come to you (Muhammad SAW) and begged Allahs 
    Forgiveness, and the Messenger had begged forgiveness for them: indeed, they 
    would have found Allah All-Forgiving (One Who accepts repentance), Most 
    Merciful”

    [an-Nisa’ 4:64]. 

    As for the accursed Iblees, he persisted in his disobedience 
    and did not admit his shortcomings; rather he tried to pin the blame on 
    others and he argued about his reasons for going against the command of 
    Allah, may He be glorified and exalted, as Allah tells us (interpretation of 
    the meaning):

    “(Allah) said: ‘What prevented you (O 
    Iblees) that you did not prostrate, when I commanded you?’ Iblees said: ‘I 
    am better than him (Adam), You created me from fire, and him You created 
    from clay.’

    (Allah) said: ‘(O Iblees) get down from 
    this (Paradise), it is not for you to be arrogant here. Get out, for you are 
    of those humiliated and disgraced.’”

    [al-A‘raaf 7:12-13]. 

    On the other hand: 

    It is not permissible for the wife to try to justify her 
    disobedience by forsaking her husband’s bed with made-up excuses. Marital 
    intimacy is a confirmed right and there is a stern warning against wives who 
    fall short in that regard. The Prophet (blessings and peace of Allah be upon 
    him) said: “If a man calls his wife to his bed and she does not come to him, 
    and he goes to sleep angry with her, the angels will curse her until 
    morning.”

    Narrated by al-Bukhaari (3237) and Muslim (1436). 

    This is a stern warning to every wife who refuses to share 
    her husband’s bed for any reason other than a legitimate shar‘i excuse such 
    as menses, nifaas (postpartum bleeding) or sickness. If she refuses for 
    several weeks, then the sin is greater and more abhorrent, and she is 
    required to repent and seek forgiveness, and also ask her husband to forgive 
    her, so as to turn over a new leaf and to create a calm and happy family 
    atmosphere in the home, filled with tranquillity, respect and fulfilment of 
    rights and duties. 

    For more information, please see fatwa no.
    99756

    And Allah knows best.