Both the complaints of the girl and her mother were not taken serious. She had no other choice but to return home.
Most exchange students would not have the courage to contact their parents back home. After all the parents pay for the exchange student experience and the students are well-behaved children who are grateful for the aid the parents have provided them, so they would be shameful if they have to report home what they are not happy. So they remain in silence when they experience something which could be close to abuse compared to the conditions they live by in Denmark.
She wasn't allowed to leave the home in her first host family and the son in the host family began to make inappropriate moves against her. It seems as she has forgotten what country she entered. We have to remember that the lifestyle Danish teenagers live - even the best-behaved would have meant that they would end up in a therapeutic boarding school, private boot camp or a wilderness therapy program, if they were born in the United States.
Over there in many states girls stay home until they are married and they have a different approach when we are talking teenage marriages and pregnancies. There are no question about that the host family was a host family because they had a son which most likely was hard to sell on the marriage marked and having a exchange student in the house was just an act to secure a candidate so their son could have a relationship.
The conditions in the second family were just a consequence of her acting up in the first family. Even the third family was warned against her Danish manners.
I think that it is good that she ended up leaving for home, but it clearly shows that Danish families should refrain from sending their children to other countries as exchange students.
Sad to say: There is nothing new or extraordinary about her story. If you research the area you will find hundred of stories like hers.