Solved
"forgetting" people permanently
I want my sim to move to a new town and not remember anyone in their current town, save for a few select people. I have the Traveler.package, so theoretically I should be able to do this. So I use ...
@ashbymcdonald You could install NRaas RelationshipPanel and ctrl-click on a given portrait to remove the sim from your sim's relationship panel. This would work before or after the move.
Or, if you'd like your select list of sims to all move to the new town, you could use NRaas Porter to pack the sims you want and then place them in a new save. It's like placing a saved household from the library, except you can pack a larger number of sims, and when you unpack them in the new save, they'll go back to being in their own households.
