Getting over someone is a grieving process. You mourn the loss of the relationship and that's only expedited by 'Out of sight out of mind.' But when you walk outside and see them on a billboard or on TV or on the cover of a magazine it reopens the wound. It's a high-class problem but it's real.
There was a point - when I was a kid - where I said I wanted to be like Luke Skywalker with blond hair and blue eyes. My mom right there told me to never be ashamed of who I am.