Theon gets first introduced in chapter 11 where Yohan bumps into him on the street. He was friends with Yohan from the clean up crew. Theon was interested in Victor (we didn’t know why yet) and he has a threesome with him and Yohan a chapter or two later. Later we find out that Theon thinks Victor is the one that killed his father and he’s planning to take revenge by killing him. Theon locks Victor up in a room and beats him up and then Yohan finds them and saves Victor. Yohan tells Theon that Victor wasn’t the one that directly killed his dad and tells Theon where he can find his father’s dead body. This is just a brief summary, hope it helps.
thank you!! somebody needs to hurt him
if you could tell me which chapters to re-read, even better. this story has been taking so many turns I've lost track of what's going on