It is almost impossible to forget somebody for that takes decades. Even so, some people may not even be able to achieve that in such a relatively short frame of time to them. You can only erode the feelings you have for one person, but even that comes close to impossible because the sight of him/her is just like a gentle river depositing the sediments back on what had been previously eroded.

Time heals all wounds. I guess only time can prove that statement right.