File this one away for the next character you write with manipulative tendancies. Psych central has always been good for strong articles on psycology and behavior.
https://blogs.psychcentral.com/nlp/2017/10/passive-aggressive-behavior-signs/?utm_source=Psych+Central+Weekly+Newsletter&utm_campaign=b800795ffb-GEN_EMAIL_CAMPAIGN&utm_medium=email&utm_term=0_c648d0eafd-b800795ffb-29338996
Passive Aggressive Behavior signs
a resource from Psych central
