Life changes

A last glance on you to remember the day I got on my own way.The last glance that ask me to never meet you again.I will back off from your life so that the the wound don't get deeper.Falling for you just making me getting weaker and weaker.Hoping someday I will never look back for the days I loved someone that not belongs to me.
"You need to go to her"
"Be her man that will never disappoint her".
Those words from mine.From a wife that fails to win his heart.I'm giving up on my unrequited love.
Is that true we are fated to be together?
If it is true,then why it is so painful to be with you?