Yeah, until we hear information to the contrary I'm also thinking along the lines of Lynch grooming Isabel. As for any "willingness" to go camping (AKA hiding out) Lynch is an adult and absolutely knows what he's doing is wrong regardless of anything Isabel can say.
And it wouldn't surprise me to learn that Lynch hooked up with the mother specifically to get close to Isabel. It reminds me of Daniel Paul York, who married a woman who mysteriously disappeared shortly after and took off with her young daughter. He was caught and is facing trial but the girl's mother Rosselys Felix hasn't been seen since 2016. Isabel's mother should count herself lucky IMO.
Oh, when Lynch is caught he may claim they are in love and Isabel may even say the same. But that changes nothing; he's breaking the law. Let's hope that he doesn't do anything stupid in the meantime. MOO.