I go to this place with my colleagues on occasions...

I go to this place with my colleagues on occasions. Their food is decent but if you go there for lunch time, I feel like they don't want us there, the look on their face is in comparison to the news of hearing someone close to them has died. Because I liked their food, I went back there with my wife for lunch, and the same expression, someone has died. But I've noticed something different which was quite upsetting, if you are from South East Asia then expect to be treated differently in comparison to a British white customer. It's so obvious, and they don't even hide the fact.