I did not make any unjustly assumptions. Whatever you described is a typical playback for some immigrants in an attempt to file VAWA. Years of experience on immigration forum will help you sniff this from afar.
Abuse happens. But it is questionable when immigrant just landed and then abuse started next day, immigrant is already gathering "extensive evidence" etc. I would think that if indeed an abuse started on day 2 in US, an immigrant would be shocked or trying to go back home NOT starting a library of evidences. What's the aim of these evidences if not VAWA? Why doesn't she not want to go back home? You had implied she wants to stay in US.
Additionally, didn't the 2 spend time abroad? It becomes questionable when as soon as immigrant lands on US soil, abuse starts day 2. The short time frame isn't doing any favors.
For nearly most immigrants,their first months is full of discovering the new environment: A spouse trying to show you how the bus line works, huge supermarkets, getting DL, meeting neighbors etc...
If your friend friend finds out she has no route in US other than AOSing via the K-1 petioner, it wouldn't be surprising if they suddenly made up. Honestly, there are 2 options: go back home OR fix it with the spouse. VAWA isn't looking great. So, what option will will she choose? Ask her and get back to us.
And I'm very open minded. I do not advocate for abuse. At the same time, I don't support frivolous cases.