I absolutely loved Tris. I interacted with her with multiple characters, but most notably as Lussuria. My greatest regret in deleting her was not being able to continue our characters relationship, from friend to foe, to being rivals.

Gaining your trust was my first step as Luss, and using my shadow sect powers, learning things about Tris and the other CCs. The hate that brewed when I tricked you into turning over something to me for "safekeeping" was beyond spectacular. And then rebuilding your trust again without me knowing you yourself was plotting to have me Anathemaed, all the while keeping a secret from the Emperor.

But fortune was on Luss's side and being able to listen in on private conversations, allowed Luss to uncover that Tris was a Scion. I don't know if I was the first to discover it, but I used that information to help myself out in the Empire, at which point that is when I learned of Tris's plan to have me Anathemed.

After that, Luss's rage at the thought is what drove her to try and murder you, not to mention rob you and set us down our path. Our rivalry was even brought up in the shadow sect channel.

Tris was fantastic, and I look forward to seeing what you do next. And besides, I told you you had echoes coming. :P