The song I wrote some times ago when my ex left for his work abroad

I wrote this after someone I care the most left me for his work in another country. and since he might not come back, we broke up that day. but I still feel something about it so I made this song ..
I don't really want it to sound sad ... but it's kinda sad for me somehow?

I don't know if i heard you said it
the word goodbye I never wanted to hear
now, we're standing infront of the gate
with your suitcases, I know you have to go

like a film without sound, the memories're playing in my head
When will i see you again?

after today, when will i see you again?
if tomorrow's not the same
you're not here anymore
how many years will it take to dry these tears
but promise, in this life wihout you by my side
i'll remember you

still remember the time we first met
i didn't believe in love at first sight till you smiled
now it's time for you to say goodbye
I know you try hard not to make it feels depress

like a film without sound, the memories're playing in my head
I found myself trying to hold back the tears

after today, when will i see you again?
if tomorrow's not the same, I just want you to know
I grab your hand like I will never let go
and you smile like you've already known, before you go

One last call, it took away my breath
as you smile for me just for one last time
before you turned away, we kiss goodbye for one last time
and as the plane take off, it took my heart away

after today, when will i see you again?
how can i look at the rain and smile just like before?
the word goodbye was forgotten to be said
cuz I believe that we will meet again
what can i say to make you don't want to go away
so we both will remember today
... I'll remember you ...