Her husband does not pray and he is treating her badly before consummation of the marriage. Should she ask for a divorce?
Question

                I am married, but my husband has not yet consummated the marriage with me. He treats me badly and reviles me in the harshest of terms that hurt me, and he threatens me with divorce for the slightest disagreement, but I try to make up with him and do everything that he asks. I have found out that he lies a great deal and does not pray and he smokes. 

Before marriage, he pretended to me that he was good and stays away from haraam things. He reviles me all the time and does not respect me. He asks me for my salary and to pay for all the wedding preparations and costs, and he does not spend on me at all. 

My family tried to talk to him but he rejected any interference in his personal life. He enjoys me as a body only to fulfil his desires and says “I love you”. 

What should I do? Should I ask for a divorce? I am afraid that if I put up with this until I have children, this will not be fair for the children!.
Praise be to Allah.
    If your husband is as you describe, he does not pray, he 
    tells lies and threatens you with divorce, then there is nothing good for 
    you in staying with him for two reasons: 

    1.The fact that he does not pray 
    is a very serious matter. With regard to the one who does not pray because 
    he is lazy, there is a difference of opinion among the scholars as to 
    whether he is a kaafir, but the more correct opinion is that he is a kaafir, 
    because of saheeh evidence to that effect. Please see the answer to question 
    number 5208.

    Marriage of a kaafir to a Muslim woman is not valid. 

    According to the view that he is not a kaafir, he is still an 
    evil doer and sinner who should be executed according to the opinions of 
    Maalik and al-Shaafa’i (may Allaah have mercy on them), and he should be 
    imprisoned according to the view of Abu Haneefah (may Allaah have mercy on 
    him). He does not have the right to live freely when he does not pray, 
    according to the opinion of all. 

    2.The fact that he is doing these 
    bad things before consummation of the marriage is something that does not 
    augur well, because in most cases the husband shows his best side during 
    this period. If he is mistreating you now, then we do not know what he will 
    be like after that.

    Moreover, if he is asking you now for your salary when he is 
    has no right to do so even if you were in his house, then what will he be 
    like after marriage?! 

    Hence we advise you to leave him now, before consummation of 
    the marriage and before you have a child with him. 

    We ask Allaah to make things easy for you and to bless you by 
    Here's Bounty. 

    And Allaah knows best.