You're Losing Me

You say: I don't understand, and I say: I know you don't
We thought a cure would come through in time, now, I fear it won't
Remember looking at this room, we loved it 'cause of the light
Now I just sit in the dark and wonder if it's time
Do I throw out everything we built or keep it?
I'm getting tired, even for a phoenix always rising from the ashes
Mending all her gashes you might just have dealt the final blow