In this room where I am alone, very soon night will fall too the picture with her smiling face will also not be visible anymore
there's no way I can forget 24 hours a day, the memory never goes away I'm so sad I should have taken better care of her
Remarks about the translation
More literal version, for reference: Also in this room for one person, soon night will come I will also not be able to see her, smiling in the picture, anymore
there is no possibility of my forgetting because the memory never disappears 24 hours a day I'm as sad as this the thing I should have protected was the fact that she was there