Bella....does seem like she could be a manipulator. Think about it, her bitch gold diggin' sister's husband kicks the bucket. What does Bella do right away: Move into their mansion and "loses her job" to comfort her sister. Then if you romance her she latches on super quick knowing there is a big ass inheritance.... Now will it end with her being a gold digging whore too, who knows. At least I don't I'm not that far in the plot.
I can say I did come on here to comment that I need a mod that lets me manipulate Elaine. That imaginary bitch so deserves to be romanced as a revenge plot fuck you. Like let me pick options to gaslight her a bit. This isn't a sexual thing, I just hate her character and storyline. Idk if I'd call it the good type of hate. Like its effective enough writing to elicit an emotional response out of me, but I'm not sure if its meant to be that way.
A plot ending with them being gold digging manipulators (well Elaine is already proven to be one to MC's Dad) could be interesting. I'm curious if there will be any interactions where the girls find out he's romancing other women. With a Harem type game I doubt so unless it resolves into threesomes/etc.