Is this words of Japanese song? There are some errors in your sentence. Correct sentence is as follows.
"Tatoe...Owarukotononai Kanashimiga Anatawo Ubattemo Hanareteyuku Kokoronado Kokoniwa Naito Itte"
Your request :
"Kanashimi"-->sadness, tear etc...
"Hanareteyuku"-->decathect
This song is very complexity and difficult for even Japanese to understand. This is the all what I can answer, sorry.