I was advised on this forum not to tell my husband that his daughter is a pp and I listened. As a matter of fact, the fact that I just keep quiet regarding anything relating to her (unless he brings it up) has helped big time as She has outed herself.
Beware on sudden unusual behavior.
My Step daughter pp sent me a gift for mothers day for the first time in the 6 years I have been married to her dad. She has been an adult, out of college for most of that time. What kind of manipulation could this be now? I know that she doesn’t make a move with out a motive…..knew that before I knew she was a pp. Her dad thinks that she wants something financial, and so now we have a standing bet on what it is, since we both think its something different. Her last financial stint was to love bomb us while she expected for her boyfriend to propose to her right after college graduation…...which must have been infuriating for her because he waited a few years and you could see how she tired of the love bombing as it waned; and then right after she got engaged started in again. (she got revenge on her fiancé by breaking the engagement in the middle of it ) In the past she has had everything handed to her on a SILVER SPOON. Now we are both just tired of her “incessant manipulative and entitled stuff”. I know that My husband loves her, but since she lived with us he finally sees through her manipulations….probably even before that…..but that’s when he started voicing it. He doesn’t have a label for it and doesn't call her a pp ..and I’m not going to tell him. He’s smart though. A few nice deeds doesn't override 26 years of obvious conning and manipulation.

The moral of the story is that when I stopped complaining about the PP, He actually saw it for himself. While I was trying to get him to see it, he wouldn't allow himself to see it and would make excuses for her. thanks for the great advice!