Take care of my EX Girlfriend

I am not a stalker ,but i am a watcher,and i see you are in love.
Well she use to be mine,i use to get kisses and the same hug.
Seeing him with you make me envy him just a little,cause deep down once mine always mine.
Look at me looking all pitiful ,why am i here wasting my time.
Yep that smile she use to give 2 me.
It is sad knowing our love was not meant to be.
With anger i say "Oh he better treat her right."
i should practice what i preach cause i let her escape my life.
Where did we go wrong,or why did i treat you wrong  ,flashes in my head.
My conscious is telling me "You are over her Web".
You can't change the past.
Man i miss her laugh.
I think they are watching so i walk by normal not to fast.
Should I say Hi ,and try to make this last moment last.
So i did and she said "how are you".
"i said i am good " , trying to look cool.
I told her i had to go ,to pervent myself from looking like a fool.
Deep inside I wanted to look in her eyes one more time.and make him disappear in some acid.
Does he know that she is  sexy ,and a tough and good  girl ,not fake like plastic.
Our love is over this, i must understand.
As i wish them luck .take care of my ex girlfriend.