Taken for Granted?

Sometimes its very sad when people take you for granted!
Thats what one of my fren said during our chat over a coffee
I think thats the time when one needs to take a pause, at times one starts feeling that there is no point, being good when the other person takes your goodness for granted. Its sad when the person doing is this is the one who means the world to you
Well I was just pondering on that matter
Its true, at times yes our family, friends,relatives do take us for granted.
How does one manage it?
I just keep quiet during those situations and try to forget it ASAP
But does that work always?It has till date :)