Translation of Tretmühle

This Thursday afternoon a group of twenty five belonging to the Language Institute of English will take a trip to the Canadian city Montreal, accompanied and well protected by the bodyguard Linda.
I told her that when you meet a person and you like that person you start dating him/her. After a while, if the couple stays together they go to the next step and move together or get married.
We arrived at the next hotel, which was only two blocks away, again deciding from the outside, that we would not sleep there. I questioned the short ride, because on the map the two places were far apart.