Got a secret

Got a secret , can I keep it? Who do you tell the biggest secret of your life . The one secret that is slowly killing you day by day. The one that brings tears to your eyes every time you think about it .
I have a secret like that , do I tell someone. I don't think I can say those words , not out loud and certainly not in front of my closest to me. Confessing that secret means giving up on the person who I love more than life it self. But than again how do I explain to the ones closest to me why I am the way I am now , why the smile is no longer present on my face , why I lost the glare in my eyes. Do I just lie , do I avoid the inevitable truth?