Doesn't it seem as though we all have that special someone who may have left from our lives months to years ago but still seem to stay on our mind. If you don't have someone in your life as such right now, you more than likely will, and this is just a normal part of existence on this earth. The trick to forgetting someone you loved deeply is that there is no trick to forgetting them. The main thing that we must do is remember the good times that we shared with this person, and to wish them the best instead of holding any ill will towards them (if there is any at all). The lessons we learned from dealing with this person are also imperative to remember. Most importantly don't waste time regretting, keep in mind that they are in your past for a reason, and to keep looking towards the future.