Eight months into their divorce, that 'respect and love', has devolved into an all-out war, Life & Style has learnt.
As Jen and Justin's legal teams jostle over her $200 million fortune, the 'anything-but-friendly' exes have resorted to hurling accusations and insults at one another.
'Their war is far from over,' an insider tells Life & Style.
'Jen thought this would be an amicable split, but she was wrong. She says she hopes to never see or talk to Justin or even utter his name again once all of this is through.'
Last week, just before what would have been their third wedding anniversary, Jen told InStyle magazine that despite what people think, 'I'm not heartbroken.'
'She's not - she's actually disappointed and disgusted in him,' an insider claims.
'The interview was her big F' you to Justin,' they spill to Life & Style. 'She blames him for dragging his feet on their divorce.'
Life & Style claims the divorce between the former couple should have been quick and simple, noting the pair had a prenup stating Jen would keep her $200 million and he'd walk away with his $20 million.
But Justin has now instructed his lawyer to go after half of Jen's net worth.
'Justin feels like he put up with an insecure, jealous and reclusive partner for seven years - two and a half of them married - so he deserves half,' a insider explosively tells Life & Style.
But, according to the US publication, Jen isn't budging.
'Her legal team is making sure Justin gets absolutely nothing,' says the insider.
'Jen wanted a clean break-up but that's not going to happen.'
Jen or Justin have responded to Life & Style's claims.