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.
I worked for this company that repossessed cars. Sure enough the day after I quit they repossessed my car but that would probably be my strangest job to date. You have to work your way up to become a hardcore repo man.