If you're already successful and confident that type of chick will already be waaaaaay outside your radar. Although it's wise to read up on what makes them tick, especially gaining power by appealing to their deepest hidden fears and insecurities. They all subconsciously fear abandonment (don't bother asking them). They are needy, and if you are too then you will attract them.
The problem is to know for damn sure their reaction patterns. You walk and they will blame you for pretty much everything, drag you down, get angry at you, play on your sympathy, threaten you and in some cases threaten to kill themselves. Despite all this they don't have a spine and WILL give in if you stand your ground and serve them silence for long enough, that's when you regain power. Don't abuse them with this though, just don't be responsible to promote their dramatic life.
If you get any of these reactions, walk and never look back. I've got a massive load of experience dealing with this since my mom has BPD, it's great training for being indifferent.