BTW the changes are not instantly happening, you might need to talk to the Sim in person before the attraction will change according to the new feature of the sim. With the FFS lot debugger find at the maty site you can clear attraction meters with it, it might help but what you are experiencing seems normal to me for now.
Well, I've been playing him with his "new" traits/Zodiac sign for a couple of days now, and the problem is persistent, even with NPCs/Townies I meet for the first time.

(In fact, he only had two acquaintances [I ignored the welcome wagon] when his constant whining about the mess became too much for me and I altered him in the first place.

)
Oh, well, like I said at the get-go, this is no tragedy. I was just curious if there was a solution to this oddity, but in fairness to Maxis, this oddity was created by my cheating, so I can't complain.
