sacrifice

Why is it so difficult for me to understand that you're not available?
Maybe because once you opened your heart to me and I crushed your hopes and dreams saying one little big word: NO!
Although I know you're the ONE, the best that I ever going to get, I have to let you go.
You deserve to be happy. And if for you to be happy is to be with her, I'll sacrifice my heart, and I let it ache until I can't breathe no more. All I want is for you to be happy.