Q n A : He married her on the basis that he would come back to his country after a certain amount of time, then he decided not to go back

Praise be to Allah.
Firstly: 

The Muslim is obliged to adhere to the conditions that he set
and to fulfil his promises. Among the conditions that are most deserving of
fulfillment are those by means of which it becomes permissible for a man to
enjoy intimacy with his wife, namely the conditions of marriage. 
Al-Bukhaari (2821) and
Muslim (1418) narrated that the Messenger of Allaah (peace and
blessings of Allaah be upon him) said: “The conditions that most deserve to
be fulfilled are those by means of which it becomes permissible for you to
enjoy intimacy.” 

Ibn Qudaamah said in al-Mughni (7/448): 

The conditions of marriage fall into three categories: 

1 – Those which must be fulfilled, which are those which
benefit the wife, such as the condition that he will not make her leave her
house or city, or make her travel with him (i.e., take her to another
country). 

These must be fulfilled. If the husband does not do that then
the wife has the right to annul the marriage, because the Prophet
(peace and blessings of Allaah be upon him) said: “The conditions that most
deserve to be fulfilled are those by means of which it becomes permissible
for you to enjoy intimacy.” End quote. 

It is essential to differentiate between that which the
husband stated as a condition in the marriage, and a promise that he made
after the marriage contract was done. If it was a condition of marriage
(i.e., the marriage contract was done on the basis of this condition), then
the wife has the choice of waiving that condition or of annulling the
marriage, if her husband does not fulfil this condition. In this case she
should be given her rights in full. 

If it was a promise that he made after marriage, then he has
to fulfil his promise if he does not have an excuse. But the wife does not
have the right to annul the marriage if he does not fulfil it. This is the
ruling on this situation. 

We advise the husband to fulfil the condition and to keep his
promise, or to ask for his wife’s consent to waive the condition or to delay
fulfillment of the promise until a later, stated time. He has to fear Allaah
with regard to his wife and not bring haraam things and haraam entertainment
into the house. 

The sister who asked this question should be more patient and
put up with it. She should also try to get wise people from her family and
from his to intervene, in order to resolve the differences between them. 

Secondly:  

The husband has made a serious mistake by bringing the
satellite dish into the home and enabling his wife to see all the sinful
content that the dish brings. The one whom Allaah has put in charge of
others should be sincere towards them and not be negligent or heedless in
his duties towards them. 

Thirdly: 

The sister made a mistake, because she is not forced to look
at the evil scenes brought by the dish, and her being alone is no excuse.
She can occupy herself by worshipping Allaah, keeping company with righteous
women, doing permissible things, and reading and listening to things that
will benefit her in both her religious and worldly affairs.