Nothing will ever change my mind that Julie shopped Jeremy for nothing other than spite. If we go by what she alleges what Jeremy Bamber had told her just before commencing the killings. She knew what the crack was. The mmacdonald saga does nothing to strengthen her credibility. As she still had direct knowledge of Bambers involvement. I don't believe this was a woman in shock. She was strong enough to attend the funerals and be at the side of Jeremy Bamber for a significant period when any other sane person would have told the authorities straight away. No amount of moddycoddlyin, sugar coating, damsel in distress yada yada can change that. I can only come to two conclusions. A) Jeremy Bamber is guilty and she wanted her share of the spoils ( financial) b) Jeremy never said these things and she wanted to fuck him over because of his infidelities and him leaving her. And to retierate I'm not even pro Jeremy Bamber
Everything I've read about her, or from her, tells me that she wasn't a caring person, and that she was very self centred. Her presence at the funeral is just despicable. I agree with your two conclusions.
However, the real question is - was she capable of inventing the story about Jeremy planning the murders? Did she know enough detail before she went to the police to be able to tell them certain things? Where could she have got the info from - Jeremy, the relatives, the papers? Was she capable of keeping up the story throughout the trial and when she was paid for her story?