Translation of Füllfeder in German-English

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.
From that day on we shared dinner. In addition, I explained them, that the reasons for coming to Cuba was photography and the Spanish language, which I wanted to improve after studying for a year.
I was surprised that he charged 5 dollars extra (a total of fifteen instead of ten), because he had to take us to three different locations. I did not buy the whole thing and gave him ten bucks.