FFFUUUUU
But that presents even more questions.
How did Ishmael, as an imaginary person, do this to the woman? Not to mention Why?
Did he just say this to BB to keep him focused on escaping?
If Ishmael is BB, how the hell was Ishmael aware of this while BB was not? Split personality?
We don't know 100% that Ishmael is imaginary.
He actually says:
"I... we gave her a light - she took the short way down."
#TeamHallucination
If that's the case, then maybe BB lit her on fire. Plenty of split personality patients don't know what the hell the other is doing.