How should she deal with her husband who gets angry quickly if she is late in responding to his requests?
Question

                My husband fails to consider me when assigning me to do things for him. He gets angry whenever he asks me to do things for him and i fail to do them in time due to my working schedules.I bothers me alot.
Praise be to Allah.
    There is no doubt that kind and good treatment of one’s 
    spouse and life partner is the most important means of maintaining a good 
    relationship between the spouses. The Prophet (blessings and peace of Allah 
    be upon him) said: “The best of you is the best of you to his family, and I 
    am the best of you to my family.”

    Narrated by at-Tirmidhi, 3895; classed as saheeh by al-Albaani 

    But you should also understand that there is no one who is 
    free of mistakes, faults or shortcomings. If we want to interact with people 
    in this life, then we have to put up with some of what they have of faults 
    of which no one is free. Mistakes and shortcomings are human 
    characteristics. If this person is your husband, then the issue is more 
    serious and more important for you, because he is your life partner and the 
    person who has the greatest rights over you, and because the issue in this 
    case will have a huge impact on both of your lives. 

    If you do not like the attitude or nature of a friend of 
    yours, you could always leave her and find another friend to make up for 
    that. But in the case of your husband, not understanding this matter in your 
    interactions with him and not putting up with his faults and shortcomings 
    will lead to serious bad consequences. Hence the Prophet (blessings and 
    peace of Allah be upon him) warned that focusing on the wife’s faults and 
    shortcomings makes marital life difficult and may lead to grudges between 
    the spouses. 

    Muslim narrated in his Saheeh (1467) that Abu Hurayrah 
    (may Allah be pleased with him): The Messenger of Allah (blessings and peace 
    of Allah be upon him) said: “No believing man should hate a believing woman. 
    If he dislikes one of her characteristics, he may be pleased with another.” 

    We are certain that you will find good characteristics and 
    positive features in your husband and your household and your family that 
    will motivate you to put up with this fault, which we agree with you is a 
    fault, but it is possible to live with it and put up with it, and try to 
    remedy it with good treatment and wisdom. 

    You can give precedence to what he asks you to do – as much 
    as you can – over your other tasks. 

    You can apologise to him if you are late, even if you have an 
    excuse and the matter was beyond your control. If you apologise to him and 
    put his mind at rest, it will not cost you anything you will gain a great 
    deal, in sha Allah. 

    We ask Allah to reconcile between you and your husband. 

    And Allah knows best.