@Levis: I know "characterization" for the various characters in the game hasn't truly been considered for a very long time.
But the whole "Matton" talk got me thinking about that in relation to the Bridgetown Apothecary and the tavern girl.
Of course the Apothecary himself was always meant to be a personification of "Stephen Maturin" from Master & Commander.
If I recall though from the Help the Church sidequest (which is now available in all storylines),
that particular tavern girl helped an evil monk (Father Gareth) blackmail a good man (Father Jerald).
Since I think Mr. Mather-Wren is probably quite a respectable person, why would he want to be affiliated with either of these low-lifes?
Especially if you make use of my suggestion to have the whole "angry church mob" thing to be the doing of the evil monk.
Possibly with some effects of the Maltese Knight Abbey on top.
For the sake of role-playing, it might be worth to think of a way that this can all work together while maintaining internal sense.
One option might be that "Nadine Jansen" was helping Father Gareth as he had promised to leave Mather-Wren alone if she did.
So that makes it a double blackmail.
Also, why does she have a Dutch name when she lives in an English town?
It is specifically mentioned for "Yedam Kinne" who lives there as well. So maybe something could be made of that as well?
I think
@Talisman is quite familiar with these sort of things. Maybe he's got a thought too?