somebody asked me this question a few days ago. and sincerely, i dont have any answer for it. this is because i personally think that it is impossible for us to forget the one whom we love. to get over the feeling, i dont think forgetting the person is the best way. the more you try to forget him, i think the more will you think of him. so, the most efficient way is letting go and moving on. but hey, talking is far much easier than doing so. believe me. i'm talking from experience. huhu.
well, i've ever written about this once. you can read it here. may it help. :)