Maya is deluded.
Liv walked in on jacob and Maya in bed. Maybe she would make that up as revenge for Jacob dumping her, but....
Liv recorded Jacob discussing their relationship.- so let’s say that was just Jacobs fantasy....
Priya saw them snogging! That wasn’t jacobs fantasy! Priya saw it. What reason would Priya have to make that up? She had no issue with Maya.
They also have emails discussing them going away.
The police can access phone records to see how many texts and calls were sent between the two of them with dates and times.
And proof that they were in a hotel together (CCTV) and that Maya tried to raise the money to pay Liv. She sold her car and David knew about it.
There is too much evidence for it all to be explained away by revenge or a misunderstanding or Jacobs fantasy.