Don’t look back and leave 
Don’t find me again and just live on
Because I have no regrets from loving you, so only take the good memories
I can bear it in some way
I can stand it in some way
You should be happy if you are like this
Day by Day it fades away

돌아보지 말고 떠나가라 또 나를 찾지말고 살아가라
너를 사랑했기에 후회 없기에 좋았던 기억만 가져가라
그럭저럭 참아 볼만 해 그럭저럭 견뎌 낼만 해
넌 그럴수록 행복해야 돼 하루하루 무뎌져 가네

You just found out you had cancer. You would tell GD, but he had a concert coming up with the rest of Bigbang in 3 months. You decide to get treatment until the concert is done. But later, Top finds out your little secret. But what will happen in 3 months?

BTW... i at descriptions. sorrry ._.