In a couple of words, Stephanie Jarvis is totally an, "emotional vampire". Just like her mother is, without a shadow of a doubt. And boy, how they play their game so v.v. well.
Just another deplorable N characteristic, e.g. initially suck people in through their naivety, then their empathy via the N's sob stories and, ultimately the victim's usefulness in the N's end game. Once no longer useful to a N, you are simply just a nuisance to them! Or, even worse, they blame shame you - absolutely despicable imho. Think, Selma, FRK, Ian x2, the mayor, the chapel restorer, the patio restorers, the accountant, the architect and many volunteers too etc, etc. Unfortunately, the list is endless! Davey won't be blame free either, unfortunately!
And once anyone experiences what is the N's way of life and constant repeat cycle process, without a doubt, the N simply just walks away leaving their victims just a shell of their former selves, all experiencing PTSD and cognitive dissonance. AKA to the lay person as, "what the hell/f**k just actually happened in such a short period of time as, from where I am sitting, I went from hero to zero scenario"