Translation of Schulbus

The mothers of my girlfriends were so insulted when I never wanted to eat their food. I mean, in the beginning they liked me, but once the saw my eating habits everything changed. I guess I blew it.
Unfortunately, it is a natural and eternal phenomenon of human beings. Whereever people have been, it appeared too. Please let me define racism in my next email to you and please share also your thoughts.
We then went out to have a drink at a bar near the hotel. There were mostly foreigners at the bar. All in all, we had the impression that there were many Westerners living in the city which gave this mix.