My Chemical Romance - The Ghost of You Lyrics Meaning

It is obviously about losing someone. But it doesn't always mean someone you were in a relationship with. How?

The Ghost of You could also be about a child sent to live with another family member, and a parent dies. Because the song has the word 'she' and 'her' in it,lets just say it was the mother. The child could have still forever cared about her/his mother, though he/she had endured emotional abuse. Read below to see why.
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I never, said I'd lie and wait forever: The child was frustrated with how life at home was with his/her mother, and gave up a long time ago.

If I died, we be together now: The mother had died, and the child wanted to die as well just to be there with her.

I can't always just forget her: The child can't just suck up that his/her mother is gone.

But she could try:This implies that the mother cared not at all about the child, hence the reason the child was sent away.

At the end of the world, or the last thing i see, you are never coming home, never coming home: This could have been said to the child by the mother. Just like if she said "You will never come back here, i don't care about you at all."

Could I? Should I?: The child begins to question life, thinking about his/her dead mother and what the mother had said before she sent her/him away.

And all the things that you never ever told me: The mother never showed compassion to the child, never told him/her things like 'I love you' or 'I am so proud of you.'

And all the smiles that are ever, ever: The child was never happy, so he/she never smiled or felt good about herself or her life.

Ever, get the feeling that you're never, all alone: The child feels that maybe there is a child better than him/her, that his/her mother likes more. Which she/he thinks is the reason she/he was sent away.

And i remember now, at the top of my lungs in my arms, she dies: The child has horrid dreams about his/her mothers death. One of them being his/her mother dying in his/her arms. That particular dream feeling so real, it seems like a memory.

She dies: The child is reminded that his/her mother has died.
(chorus)
And all the smiles that are never gonna haunt me: The child never recalls smiling or being happy living with his/her mother, so no smiles will haunt him/her now that his/her mother is gone.

Never coming home, Never coming home: A reminder that his/her mother is gone and that he/she will never come home back to her.

Could I? Should I?: This part is sang louder in the song, pushing pressure on the child on what to do with her.his life.

And all the wounds that are never gonna scar me: The child has made up his/her mind. He/she is planning to kill him/her self. So that she/he can't get hurt, and the 'wounds will never scar him/her

For all the ghosts that are never gonna catch me: She/he won't be haunted by ghosts, because she/he will become one.

If i fall: If the child dies

If i fall, (down): if you listen you hear down the second time he sings 'if i fall' so if the child dies,the wounds won't scar, the smiles wont haunt, the ghosts wont catch.

Music plays as the child prepares for death.

The chorus replays again as his/her whole entire life flashes before her eyes when the suicide takes place.

Never coming home is repeated twice during the chorus as the child dies. She/he won't be coming back home.

For all the ghost that are never gonna...: It trailed of before Gerard could sing, 'catch me'. Indicating that the suicide is over, and the child is dead.