In a Dilemma Situation

Yesterday night, I heard a news that is breaking my friend's heart. Because of this news, it made me to think of us. I kept asking myself, should I wait for you? Or starting from now on I should block you out of my mind and my heart?

What my friend had said have the points. Rather waiting for some kind of thing that is impossible, I should just stop it now. But inner of me, I want to be selfish. I don't want to let you go even if someone is beside you. Am I very selfish for doing so? Should I just let you go?