Lillian Foster: I can't help thinking that if I'd stayed there, if I'd just gone and talked to Allan, he would still be alive.
Simon: Mmmm. Most likely you'd both be dead.
Lillian: Well, the way that I feel I might prefer that.
Simon: That feeling will pass.
Lillian: What do you know about that?
Simon is, of course, alluding to his own feelings and experiences of "survivor guilt" over the death of his wife and child at the hands of Red John.