One second without you
Is all it takes;
from the time I turn around
and walk away.

"I miss you."
^ I think this is a nice introductory stanza because it's very understandable and sets a nice atmosphere. This poem is obviously directed at one specific person, that is very dear to the reader and I am sure a lot of people can relate to this as there are quite a few people experiencing a love as strong as this one.

As if the earth
had opened its shell
and taken you away
from our perfect world.

^ I'd recommend you to rearrange your stanza like this because it flows better.
I have to admit I'm struggeling to understand this stanza, you are probably refering to that persons death and earth opening its shell would mean that persons soul ascending towards heaven, yet I think it's quite honorable for the speaker to believe that the world is perfect even after that event has taken place.

"Your touch"

Like a tear drop
gliding down my face
As your finger did before
my lips touched yours.

^ The speaker is reminiscing precious moments with that person, to make sure he/she will be remembered in a positive way and appreciate, instead of feeling grudge over his/her death.
"One second "

Is all it takes to realize
what I have, what
I can't live without
and that I will love you ...

"forever and a day".
^ I like how the ending is like some sort of realization and also a suggestion for other people, as in everybody should always try to make sure they treat people like they deserve and that every moment might be the last, yet appreciate it instead of be sad about it.

I can see why you put some verses in quptation marks, but I didn't get why with all of them to be honest. I think it's a heartfelt and touching write nonetheless and enjoyed reading it.
Fixed whatever spelling errors you had too :P

I don't want to be too critical about your piece but there are a few issues that just didn't help with the flow or sight of the piece such as the capital letters where they weren't needed and the occasional lower case such as "i" when it should be "I" and just the wording and lack of punctuation really.

But poem wise I thought you did a nice job and I liked the piece, it was touching and sweet but just those issues really drew me away...

:)
x

U r so rite, one sec is enough to let us knw..