Shakespeare said parting is such sweet sorrow.
There is nothing sweet about sorrow. Nothing beautiful or romantic. Sorrow is painful. It's scary and it is weak.
Sorrow, my friend, shows you for the whimpering mess you are. For the scared little child you try so hard to hide away. It shows your addiction, your dependency.
No, there is nothing sweet about sorrow. And there is nothing sweet about parting. Because parting means goodbyes and farewell.
And it reminds you that eventually, everyone leaves.