Wow, thanks for being so specific .

Okay, i have listen to this piece three times in a row. i like it alot. But i don't agree with the name at all. Maybe i have listened to too much Tchaikovsky, where everything is swung into the melodramatic ends, i don't find this piece to be very dark. It swims more in the shades of grey with a few peaks and it starts out early in a valley but never seems to find it back there. 
Something more like "Amour_Melancholia", perhaps. 
If it weren't so fluid, i would give it a name like "Dolor".
This indecision is based on the fact that i label poetry and not music. Your piece touched me.
It just feels more like a lament or remembrance.
Got it! How about "Memento" or "Remnants"? If you wanted something with a little more complexity you could try "Remanence". Definition: (noun) 1. The state or quality of remaining; also, that which remains (such as the person playing the song). 2. In electricity: That part of magnetic induction remaining in a material after the removal of an applied magnetomotive force. the ending especially seems to cause me to linger not in darkness but in a lighter finality. It could use a slightly stronger/sharper note at the end or the recording equipment used just didn't quite capture the last few notes. Hard to tell since, again, i am not a musician myself. You could try asking isaac as he is a singer/songwriter/musician but his taste falls more into country music.
Hope this helps D.R. and thanks for letting me enjoy your work. Good luck on the title hunt. Cheers!