I think she thinks she is not recognized when she goes out.

While this foreign born A list dual threat actor was out of town filming, his wife was out with another man, who some say is the boyfriend from whom she never split.

The two were definitely very very close while out in public.

I think she thinks she is not recognized when she goes out.

Benedict Cumberbatch
Sophie Hunter

Source: http://www.crazydaysandnights.net