These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
There was a fairly distinct and very canonical angst-fraught Love Triangle in Mafia!AU - Tian/Ves/Leon, involving angst, more angst, blackmail, crossdressing, parties, and angst. Oh, and did I mention '''angst'''?
Come to think of it, every AU Taliesin and Fauves to date has been in some kind of relationship.
Viewer Gender Confusion: Taliesin to an extent, Tian oh so much. Lampshaded on many occasions, and is sometimes used to advantage - though he resents it quite a bit.