How could?

How could I forget someone who gave me too much to remember?
How could I forget every single thing about you?
How could I forget the way you say "I love you" to me?
How could I forget the way you hold my hand?
How could I forget the way you hug me tight?
How could I forget every word you said to me?
How could I forget every things that we've been through?
How could I forget every times that I've spent with you?
How could I forget your smell that I loved very much?
How could I forget your smile that could make me feel better?
How could I forget you like you forget about me?
Could you teach me?
Because you have no idea how painful it is when I think of you..