Translation of ungültig

This is almost six hours, a long time for someone who has children and a day job. I recommend that we write eachother shorter emails and in both languages. Spanish and English next to eachother.
The cannot do it because of the girl's pregnancy. This fact creates a very unpleasant tension between the two characters, their future seems to hopeless and uncertain. Will they be together?
We left and went back to the boat which took us back to the big vessel. We started our journey back to the main land. It was already late and from the main land, it was still a four hour drive back.