Can someone let me know....

How long (if ever) it took for the image of your xn to start disappearing from your mind. Like, when you had a hard time imaging his/her face? I know it may sound silly, but I have NO PICS at ALL. I made sure to get rid of them. I also blocked all media outlets...so I can not see his pic in passing. I just am trying to see if those of you who have went NC for a long time have forgotton their image to a degree. His face haunts my dreams still at 5 weeks NC.