At some point you will realize that you have done too much for someone that the only next possible step to do is to stop...
Leave them alone..
walk away..
its not like you're giving up and shouldnt try..
its just that you have to draw the line of determination from desperation...
what is truly yours would eventually be yours and what is not, no matter how hard you try.
will never be..
and wil leave sooner then later...