So we don’t know whether the OP heard two teenagers shrieking at one another or an 85 year old couple yelling at his spouse or a mother shrieking at her child or a father raising his voice at his son.
Yet we have posters here telling him to call the cops even they don’t know 10% of the story. Whereas the Rov shlita who he consulted with and described who the persons are, and the Rov knows what their relationship to each other is and what kind of raised voices were involved said not to call the cops or anyone else.
And those here who don’t know a fraction of the story are telling him to disregard the Rov who has far more information than you, me and the other posters here?