When I think of all I put you through Always taking you for granted I never saw it from your point of view Blinded by the double standard You were tryin' to tell me all along Something in the love was missing You said, "It's not too late to get it back But I just wasn't listening" If I knew back then what I know now If I understood the what, when, why and how Now it's clear to me what I should have done But hindsight is 20/20, 20/20 vision Now I see it in a different light I've been losin' you in stages Give us one more chance, I'll get it right Girl, you're gonna see some changes If I knew back then what I know now If I understood the what, when, why and how Now it's clear to me what I should have done But hindsight is 20/20, 20/20 vision Takin' time to catch up on some history Tryin' to figure out what went wrong with you and me And it doesn't really matter what's been before But I know there's no future with you walkin' out that door If I knew back then what I know now If I understood the what, when, why and how Now it's clear to me what I should have done But hindsight is 20/20 vision If I knew back then what I know now If I understood the what, when, why and how Now it's clear to me what I should have done But hindsight is 20/20 vision If I knew back then what I know now, know now Know now, now, now, now, now, now, now