Well - it sure seems that the policeman noticed scratches in two places on Brian (he documents that). She cries the whole time, he can't get her version.
Witnesses (three of them) see the couple struggling over a cell phone (Gabby's?)
In the police report, Brian is listed as the "victim" and Gabby is the other party (can't remember the word - "assailant" I think).
The cop who stayed at the scene and helped keep Gabby from arrest or a ticket (one of which is mandatory in an actual DV incident in Utah). He states that she was crying the whole time, had her face in her hands, was rubbing her knees in agitation, and otherwise, I'd say "agitated" the entire time he was there. This is consistent with what the witnesses said, as well.
While police reports are not infallible, I trust them way more than the BF in this case. And I think the police acted in a kindly manner and did not cite Gabby. Instead, they let her go away in her own van (which seems to be part of the fight) and Brian has to go to a hotel (paid for by a domestic violence public interest group).
I just don't think most cops in Utah would risk their whole career by writing up lies that are so specific. But especially, not in Moab.
I do believe that it takes two to tango on public streets.
And next day, I don't think we see pictures of them jointly on her Insta, any more - not until Ogden (where it appears someone was holding the camera, presumably Brian). And Ogden is north of Salt Lake.
So, we have Moab to Salt Lake with no pictures (that I know of), then the hotel stay in Salt Lake while Brian flies home to do something with stuff that's in a storage unit, then flies back to SLC, where they take off north again (see picture of Gabby in Ogden). By August 25, Gabby is in Grand Tetons (according to what she says out loud to her mother).
Moab incident is August 12-13.
