It’s not stupidity to still hope in someone whom you knew would most probably ignore, or worse, reject you. It’s what you called longing and hope. You long that maybe there is the tiniest bit of hope in him responding to your call. You hope that he might still answer you, accept you and give you another chance. Though you have the slimmest chances, it still does not stop you to hold on and to hope because you believe that maybe, just maybe, he feels the same way.