I've never thought that of Sarah. She was my second favourite right from the start.
I'm sure Trisha is multilayered as well, but is she necessarily multilayered in a positive way? I won't love every character just because they have this super rare thing called depth.
I can get behind that (pun more or less intended). Regarding Sarah, I've said it before, she really didn't do anything for me in the first chapter, because I just saw her as another bimbo. Heavy Gods, was I wrong!

By chapter 3, she became just another character whom I could die and kill for (in the game, boys, calm down). So I think that Trisha might very well go that way depending on the events to come in the subsequents chapters. I admit she put me off at first with her unbridled sexuality, and I think I wasn't the only one to feel so, but if I don't come to love the gal "because [she has] this super rare thing called depth", I'm sure learning to know her will be a hell of a ride anyway
