First Edit: To The Person I Used To Be

[Leanne]

To The Person I Used To Be

Do you remember life before
the bags beneath my eyes,
or how you watched her young allure
replaced by motherly disguise? -- this line is a bit long and unwieldy -- for a fix I'd suggest something along the lines of "or how she went from young allure/ to motherly disguise"

Do you remember her midnight hair? -- perhaps recall instead of remember
A softness only found
in darkness; every strand beware, -- beware is an odd word here 
it falls without a sound.

Why didn't you do anything
to stop her leaving us?
Instead, you quietly took back the ring -- "quietly" is making this line too long.  Perhaps "instead you just took back the ring"
and checked the band for rust.

I must apologize for this,
my questions go unheard
like love behind a familiar kiss, -- familiar is throwing your meter out... I can't think of a replacement of the top of my head for this line but it would be nice to have it fit neatly, because this is a strong stanza
farewell the truest word.

Hi Richard, I hope you're feeling better.  Rhyme can really bung you up.