Treated like a suspect because of my race

I went to Woolies at Heidelberg mall with my fianc?e on the 22nd to buy some groceries. As we were making our way to the food court she saw some jeans that she liked hence she wanted to fit them. However since the cut of the jean was different she ended up trying 3 different sizes. As this happened I was waiting for her near the fitting room's door, there were two other white clients who were waiting for their partners to fit, a security guard and the Woolies employee who was monitoring the fitting room. I think I waited for +-10Min as she kept pacing up and down looking for a top to go with the jean. As this happened I heard the security officer being summoned by who I think is the instore head of security officer, describing me and asking her what am I doing next to the fitting rooms. I questioned the security official who received the radio message. I needed her to confirm if the man on the radio was asking about me? She tried to play it cool but I really got agitated because I was not the only client instore who was waiting but yet I get treated like a *****. When I told the manager about this, his body language said to me that it's a norm there.Blacks are monitored over others