You express so well how you feel. I have been where you are. The man I loved let me empty, empty of music, poems, literature, art. A song could me make me cry for hours. What I did, I listened again and again all the music we shared, I cried until there was not more tears. Then I remained in silence for a while, I stopped listening music. I started creating new memories, my memories alone, listening new music. I am feeling better now, with less distress. Now, when one of our songs pop up, still a current of sadness touch me, but no the way it was before. Now, it is not more crying, it is nostalgia, a little remembrance of the past. I said to myself, love is to make people happy no sad. And I keep going.