the best things in life are free

If I could trade insecurities I would be a rich girl
But I was never good with figures
Could you negotiate these curves
Because these lines are coming thick and fast
Like the years advancing around my weary smile
my confidence grows with interest but it takes a while

could you invest your time any better with me?
we pay a high price for this privacy
but mistakes could cost us everything
discount that last line, it's false like me
forged like this facade and everything you see
can be bought and paid for if you have the currency