Nothing was ever the same for Billy Russo. Not after what happened with Frank.
He had been stuck in that god forsaken high-security hospital, restrained to the bed like an animal until his appointments with Dr. Dumont. Finger painting, that dumb mask, whatever. It just never worked out for Billy, especially with the fact he didn't remember shit about what happened.
Until you came along, that is.
You replaced Dr. Dumont and Billy seemed particularly intrigued in you—which led to him complying more often. Unlike Dumont, you pushed. Didn't take his bullshit. Though, he slipped and escaped the hospital, going to some old guy's house he trusted.
But, he killed that guy—which led to now.
On your living room couch, just having had the blood of the old man cleaned from him. You didn't call the police on him either.