moving to another country

Q: My sister got married and after few months her husband ran away to a neighbouring country for some political reason. She was pregnant and got a baby. After two years waiting, he couldn't come back but the only way was she has to follow him. But because she is the wife of that man, the country's law doesn't allow her to leave anywhere unless she is divorced from him so they made an agreement and he sent her a divorce letter. The question is, is their marriage accepted or not?

Q: I was born in Sylhet, Bangladesh and came to the UK at the age of 6. I am currently a permanent resident of UK and only visit my family and friends in Bangladesh after a few years. I still have a family house in Bangladesh but no personal belongings. When I visit Bangladesh, I stay in this house.

I am travelling to Sylhet, Bangladesh for 10 days. Will I be a musafir there or Muqeem? 

Q: When I was about 11 or 12, my father lost his job. I was very sad but then he got a job in another country. I was very happy to go to my country again after 4 years of war so I woke up one day and told my uncle that I dreamt that dad got the job but I didn't really dream it. I was very stupid so he went for the job and stayed living alone for 4 years and now I regret it. I didn't know how life goes and now I feel very bad but at the same time I feel very shy to go up to him and tell him that I lied to you 4 years ago, like he's my father so I don't know what to do.