I will tell you, confronting didn't work for me. In fact, it was the beginning of the end.

Personally, it would drive me crazy as well though and I would want to know.

I think, answering honestly, if it were me, I would try and talk to the neighbor to get as much info as possible. Then I would prob hold on to the info and would only bring it up if we R. And then I would bring it up in a safe setting like mc.