It's so weird it must be true. Your post does not explain why she told this lie. She also claimed she told another female friend before telling a male person before going to the cops. Tell you what her problem was: nothing to do with what her unconcious or concious minds thought and not only to do with being passed over - this fraudster, actress and thief was (rightly) worried about her own complicity for murder and had to take a huge risk in talking to the cops.
What did Sue Battersby say about when she was told?
Just as happened with Sheila, some people want to invest Julie with super-human powers. Apparently, Julie was hard-bitten, duplicitious, bitter, vengeful.
I just think that Julie was young, misled, trapped, confused and frightened. And dragged along with Bamber's loony, dangerous pipe dreams.
And don't ever forget, Bamber asked Sheila (for the first time EVER) when she and the boys would next be at the farm. For Bamber, all the pieces fell into place, it was shit or bust.
Why did Bamber call Julie twice, that night? Once for bragging reassurance, then for an alibi to cover his sorry, murdering arse.