That certainly escalated quickly. The insane “mom” stuff is beyond snark or parody at this point, as Batty’s endless quest to re-live and bask in the glory of his “Lisa’s Story” heyday has him turning every character in Les’ orbit into Lisa-worshiping drones who never, ever stop singing her praises and spreading The Word. Obviously Boy Lisa has no idea what Lisa would have thought of Cayla, as he barely even knew her and not only that, “what Lisa thinks about Cayla” has already been (ahem) adequately covered.
In “real life” Darin’s friends and family would probably be growing quite concerned regarding his bizarre Lisa obsession. Wandering around Westview talking about her, giving a huge cash windfall to a Lisa charity, always referring to her as “mom” as if she raised him, it’s very peculiar behavior. What kind of father with a child Skyler’s age has time to meander around to book signings on a whim? What did he do, arrive at his parent’s or in law’s house and announce that he was going out to pay tribute to his “real” mother now? It’s deranged.