Hi Softfocus,
I'm completely new to this, but I read with huge interest your thread. It really struck a chord with me as I've found myself in a very similar position.
I was wondering how things have panned out for you?
My wife was actually diagnosed with severe postnatal depression about 5 months ago (her symptoms in her own words being pyschosis, paranoia and suicidal ideation) and she left me 4 times in 3 months, the last time 'being for good' about 6 weeks ago. She is staying with her parents who do not support our marriage at all, and to give some insight as to why this might be the case, her parents are in denial of the diagnosis. My wife dreaded telling her Mother, and when she did, her mother's response to being told of a formal GP's diagnosis was "oh don't be so ridiculous", and proceeded to blame me for any difficulties in our marriage rather than seeing the difficulties as symptoms of severe depression. They see my wife as 'the golden child' and can't contemplate the stigma (as they would see it) of a mental health problem being at issue.
Certainly I can now see serious control and insecurity issues with her parents who have projected those into their daughter and into our marriage, and from certain scenarios you have described, I wonder if you see that as an issue with your Parents In Law?.
After she left 'for good', any time (4 times over several weeks) I tried to calmly discuss seeing our baby for more than the few hours on a Saturday and Sunday afternoon that she allowed, she told me "if I didn't like it, go to a solicitor," "if I feel hard done by, we should engage solicitors", "if I feel like a victim, get a solicitor" etc. I felt I had no choice but to do that very thing, though of course I was very reluctant as this could escalate things.
Her response was to deny all contact for 2 weeks, citing that she couldn't allow contact until she saw her solicitor. At present I see our baby for about 3 hours each week, as solicitor's letters go backwards and forwards trying to reach agreement. I am hopeful that overnight will be agreed so I can try and maintain and build up a relationship with our baby at this crucial time in his life (he is 7 months old).
Anyway, I guess I wanted to vent a bit, and also to emphathise with you as I understand what absolute heartbreak you are going through, and also perhaps to see how things worked out for you?