Damn I thought I'd got back to you on this one, clearly I didn't.

They've not been plotting per se, simply... suggesting they can do it better? Your wife has a taste for revenge, it doesn't seem she's done with trying yet. Maybe we can continue down the road of Erik and Jacob not being so antagonistic to each other and then Erik can find out somehow?

OR find out Jacob has been giving her Lust? :D not recently but