Short Sad quote

The loneliest quote I've ever known:

The girl said to his boy: You know how much I love you. But I won't deny the fact that you love someone else in your life right now. I always want you to be happy and if she is the one who can truly make you smile, be with her and I'm willing to sacrifice.

The girl was left crying...

The boy rush after the girl, held her hand, kissed her romantically, and hug her very tight.

Know what he said?

"THANK YOU"

how sad..:(