So someone pointed something out to me that I now can't stop thinking about, and opened my eyes. Like before I didn't like Pudding for how cruel she was, and never apologized. But it can get so much worse. So much.
Pudding's Fruit is basically the Gaslight Gaslight No Mi.
By stealing Sanji's memory at the end of WCI of the kiss, she's shown two things.
1. She's not against being underhanded if she wants to be, and will manipulate to get what she wants.
2. She cannot be trusted with her power, violating his last point of trust with her, to take his memories. This time it was just a kiss out of fear of rejection or to let him go. What is it next time?
This fruit makes anyone and everyone around Pudding as well as herself the Unreliable Narrator.
Any fight she and Sanji or any guy she gets with have? She waits till they sleep and changes their memory. An argument where the other guy said no? She changes their memory to yes. Doesn't like a habit her boyfriend has? She edits their memory to remove it, or if that's too far back, just makes it seem like they gave it up.
Like say the boyfriend/husband doesn't want kids but Pudding does. They argue. He goes to bed, she changes his memories to him saying he's fine with kids. Later when they talk about it or she gets pregnant, she points out he said it was fine, and he remembers it as fine. Boom forced with kids.
Sanji or other husband wants to hang out with crew/friends. Pudding feels jealous and wants their attention more. She erases their memory of agreeing to hangout. Maybe even erases the friend. Boom, no more friends or mad friends.
Boyfriend/husband looks at other women or has any other habit she doesn't like, like smoking? Edits memory to have them give it up, boom no more habit.
She can basically use her fruit to brainwash her significant other into the perfect doll she wants where she's always right, can do no wrong and gets everything she wants.,
With this acknowledged, I think Pudding should either lose her fruit, wear a seastone bracelet for the rest of her life, or never be with anyone ever as she has shown she is underhanded, will violate trust, and use her fruit at her slightest whim of discomfort/embarrassment/shame/anger/or just thinking she's right.