Before I go to the detail of the poem, i want to give you a small hunt,
adit line five, cause it is killing the flow of this perfect poem.
This poem is great, as many hidden words can be read, short yet holds meanings which are deeper than sea.

my favorite lines are
the the ones you love them, before it is too late.
i agree, life is so short to be waste. this remind me of a quote which was sent to me from onr of my friends that says ( If you meant it, show me....... If not now then never, cause now is the reality and tommorow is just a dream)
you have touched a deep meaning within the poem yet you stayed in the border of art form, which is poetry it self.

"tell her
Or she will give her heart to another"
the way you poem ended with this strong line, to me it is a warning, to warn a person, YES you will see it will be late, and i do agree with you, reading this I want to share one of my personal story which I never mentioned in P&Q before,
when I was in high school, one day I was with my History teacher, he was fixing one of my reports, a girl came in with wet eyes, that student was so close to the teacher just like me,
she told him, " I'm so disappointed, the guy who I loved for years called me and told me I should not bother as he cannot love me, he dont want me"
it was the month of december and it was snowing outside, he looked at her at said
" Take a look at outside, can you count the snow flakes?"
we both looked outside, and she replied "NO"
he said,
"that is how many persons you will meet in your life time, then why shed tears just for one of them?"
this answer really touched me and I always remember it, and I dont know why but that was the message I got from reading this poem,
once again, great job and you proved that you are a talented writer........