Problem is, she didn't talk to him. She just came home from work and was standing outside. I was deciding what to do next when this man just walked into her house and made himself at home. I had played occasionally before the formal release a few days ago, but never had that happen. I suppose he will leave eventually, but I haven't been back in the game since.
Maybe it was just a glitch, but it reminded me of FreeSO (Free Sims Online) where other players can walk into your house uninvited and use whatever they want. It kind of freaks me out, so I won't play FreeSO