the golden rule: needs to be re-evaluated

"Treat others the way you would like to be treated..."

I think, maybe, there's room for adjustment with this rule. Like, say, for example, I treat someone the way I would like them to treat me, yet they treat me however they want (which isn't good). Does that mean I'm going against the golden rule if I decide to be a bitch and cut them out of my life? It's a fine line, I'm not sure I want to cross it, but I definitely don't want to be treated with disrespect.