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 is a widespread difficulty in the Muslim world which has to do with how the people are taught about examining their own history. A whole range of stuff has been placed off limits.