S2 blab.
So as a note, I'm kind of playing end of S1/Post S1 Billy, or thereabouts. That said. I will probably canon update to S2 Billy as more canon comes out. Why? Short story - I fucking love crazy fuck yandere Billy, or as we like to call him, Angry Billy.
For anyone who clicked on this link and hasn't started to watch S2, basically, two years after S1, Billy finds Sumeragi and they end up living together. He probably thinks this is pretty awesome, but the main thing he does is house her and enable her alcoholism. GG Billy. Two years pass, and suddenly, Setsuna shows up, comes to his house, and takes Sumeragi away. Not before disclosing that she's been working for Celestial Being. This causes issues with Billy, as it's at that point that the following things occur:
1. the giant crush he has had his entire life has just been taken away from him
2. he finds out that HE had been the person who had been giving up secrets about Union's plans to Celestial Being.
3. PS CELESTIAL BEING KILLED GRAHAM AKER :(
Full disclosure, I like seeing my favourite characters in horrible pain. This is horrible pain. "She trampled on my feelings" HORRIBLE PAIN.
Note that, really, Billy himself hasn't changed - what little we've seen of him since he took a position with A-Laws still seems to show a man focussed on his work. However, he's focussed because he wants revenge, more than anything else. However, that's about all we've seen, and he hasn't even MET Mister Bushido yet.
This is why I could not app Angry Billy. Hopefully, he will become a more viable, fleshed out character and I will be shamelessly enabled due to camp stealing of women to canon update to him. WE WILL SEE. :)