This can mean so many things, love. This rule is applicable to friends and boys (I'm pretty sure when the time comes you'll be able to have a better grasp of 'life' in general, you'll be visiting this page often).
That said, walk away. Yes. Don't be afraid to walk away from the things that doesn't help you grow. I've been on that road before, I have also cultivated the feeling of 'fixing' things that are broken. People, boys, friends, you name it. I've seen it all.
What I have learned in the process is that when you force yourself on people or relationships with the intention to fix it and nurture it will only create a problem for the both of you. People that carry so many heavy and un-dealt baggage can bring you down. And unless you have figured things out already, approach the situation with extra caution, love.
And when you have done your absolute best to be compassionate and still feel that things aren't working-out for the better, draw the courage to walk away and save yourself the heartache.
