This is great advice. Forgive and forget it. There is nothing that you can do about the past so learn from it and then let it go. There are way to many great things that are waiting for you in the future so keep moving forward.
This is going to sound really dumb but I believe that when you find someone better, the love you had the for the person that broke your heart will be replaced.
Face with what you have met with courage, don't make the same mistakes,and change another mood to see the world. Come out from the place where you are sad or change for another place!
Just what other people said, make yourself busy so that you'll think of him/her as much as you used to. Then go on a date just to divert your feelings to someone else.
listen to the music. especially Rock. or matbe you are looking for a replacement as quickly as possible.
Frankly a broken heart cannot be healed ever. Instead you can just divert your mind and heart to something different for a short period of time and then again find a new partner. I might drink or go for a long drive alone on a not so crowded highway, if I wanna have a quick diversion soon after the heart is broken.
what are you trying to point out? you just don't know how other feels, people feels sad and depress, it's stupid if you don't even had that feeling before