He don`t have to know

Don't let him know you miss him
Don't let him know you still care
Act like you don't want him back
Hide the fact that you made a mistake
Pretend like you've moved on.
Don't go begging
girl dont degrate yourself
yea so what if he's worth all the tears you cried
He don't have to know that.
Remember that you left him for good,
Remember that he wanted you to stay
just remember that you'll find someone new
that will sweep all the memories of him away.