IME individuals who suffer from paranoia still speak articulately. Out of context, quite credibly and intelligently.
I get the impossible that LE discovered that recorded exchange while investigating the friend's allegations, via a search warrant on her phone. She did not volunteer it AFAIK in order to defend herself. IMO probably because she's paranoid indiscriminately. Everyone who comes to her door, LE, etc. And just because someone might be pathologically paranoid doesn't preclude them from actually be followed.
In this case, she is being followed, she is being hounded. In some ways, the whole world is after her.
Because her daughter is missing! Her daughter is missing, she's not cooperating with LE, she's not looking for her daughter as far as anyone can tell. She's not making pleas, not hitting the media circuit. She's exhibiting done very peculiar behavior which, when paired with a missing child, makes one wonder if this behavior didn't precede her daughter going missing.
Could it all center around a legitimate fear her daughter would be taken from her multiplied by pathological factors? I think of truly psychotic mothers who nurder their babies, believing this is the only way to save them.
Maybe Ashlee isn't grieving because, wherever Melodee is, Ashlee believes her to be "safe".
I agree with with everyone here who had concluded that Ashlee sounds surprisingly coherent and lucid in that recorded exchange. So do people with dementia, from time to time. Would be very convincing to a passerby...
But none of what she is doing makes sense in light of her daughter being missing.
Notably, she filled that entire recording with verbiage. But said nothing about the only thing that currently matters.
JMO