Anyone who can please help me

Anyone who can please help me
Im now still waiting for someone i really love
But at the same time there is another girl care me a lot
She wish to be with me but my heart already have someone i want for my entire life
What should i do only i won't so hurt the girl
I really don't wish to hurt any girl anymore
I really don't wish any other girl cry because of me
Im so confuse now
Im sure i won't accept her since i never put down someone in my heart
I don't want to be unfair to anybody
I don't wish to hurt anybody else
I wish im the one who get hurt
Since i already hurt someone i really love so deep