I love you more than this (arrange Marriage)

What would you feel when you know that your love one, love someone?? It's okay?? What if he/she loves you back then he/she just don't like to say , because he/she is afraid to say?. Do you want to tell it first to Him/her ,or maybe let him/her to tell it.
But he/she need to sacrifice his/her love to save a one life that is also special to him/her.