请帮我把下面一段话翻译成英文

in fact, i know everything.
i know my position in your heart.
i know where is your future.
i know who you will marry.
i know i am only a substitute to you.
i know you will contact them after i leave every time.
however, do you know your position in my heart?
you are my everything, i love you much.
but how come you treat me like that?.
i can't find the excuse that can persuade myself.
no one say that i treat you bad.
i can't understand what you did.
can you tell me a perfect excuse?
you tear my heart one by one time.
i am not sure how long i can continue.
do i need to go on like this?
if you do not want to have a result with me, please get out of my life as soon as possible.
if i am not in your heart, i am just a passenger, please get out of here.
do not impose me to console you, get along these lonely days with you. all i want is long time , in your eyes, i know nothing,i am a stupid guy. in my eyes, i think i am stupid as well, i know everything, but still hide my emotion in order to pretent that i know nothing. what can i do eventually?