How awful for you. I'm so sorry that you had to experience such negative behavor from these men. I can relate though as such things happened living in Kuwait as well.
However, I am in Qatar now, I do have blond hair, (streaked) and I do notice the looks, however, I learned a long time ago to look the other way and before long you don't even notice them anymore!
Glad to hear that you are still able to enjoy Qatar.