Quoting jordan.ℓeigh✿:" I would confront the bitch. That is annoying... And I would also be scared of her calling CPS. And if she did and they took it seriously you would both get drug tested."
Agreed! My dads disgruntled first wife called DHS on him when we were little and they came in and check all of my sisters for sexual abuse, for NO reason.
Confront that bitch. She sounds like a very bored, old hag, honestly. I'd have no problem knocking on her door and telling her off. Also, be sure to tell her to mind her own damn business and to quit worrying about what she THINKS your SO might be doing.