I believe her mom is living in denial and a loss for what to do with her, and has been for a long time. There's no way Jodi had a perfect or stable childhood, yet turned out like this. Before the murder she had a life of meaningless jobs, dabbling in dumb things, relationships that didn't pan out, she dropped out of school (her mom had to sign for that). She kicked her mom in anger. She kicked the dog in anger. She's a product of divorce. I just feel there's something that happened which caused her not to trust people and to have a fiery resent towards her mother. None of it is a excuse of course, but everyone owning up to the reality of things would give the psych community more insight to the "nature vrs nurture" argument.