Lyric discussion by raffattack 

Cover art for The High Road lyrics by Three Days Grace

maybe he had sexual relations with a girl and then ended up driving her away due to his drug abuse and self medicating issues and then realized after moving onto different girls that shes truly the only one she wants to be with and hell do anything to redeem himself while she doesnt want anything to do with him whatsoever, thus motivating him to get clean and improve his life in hopes of one day becoming the man she needs. he wants to be the one mistake she cant live without. also he says there are times hes stayed alive for her, probably implying that he was driven suicidal and into deep depression over this girl constantly beating himself up for his mistakes but still sees scarce hope that he will pull out of this slump hes in and his life will eventually take a turn for the better. he says will you straighten me out? because he cares for this girl and sees so much potential in her that he'd be willing to give up drugs to be with her and never drive her away again. shes the only light breaking through his window. the only thing that keeps him strong. and at the same time the one thing that yields the greatest pain

also,maybe its not the fact that he did drugs that drove her away, but its the way he acted toward her while under the influence and he realizes this which is why he uses her as a source of motivation to get clean. driving away ppl u care about the most in ur life tends to be a wake up call for ppl who are aware that drugs are making them change and become someone they dont wanna be.

and when he says "the worst part is looking back and knowing that i was wrong" he is saying that now that hes back on his own two feet and hes mentally stable and clean he realizes that no matter what he does this girl will never come back to him. he realizees that if she truly cared she wouldve comforted him and shown sympathy when he needed it instead of turning her back and just ignoring him. he realizes there is always hope for another girl to come into his life even if he never meets another like her....