dear In need of, thanks for posting your comment and welcome.
Everybody makes mistakes it's just how others take it, but remember they too make mistakes, which many don't accept, because they are always right.
You say that you 'handled it the wrong way', perhaps that's only in the in the laws opinion, but you have a wife and a joint agreement would have been made, although there maybe a question about this.
When your wife focuses on everything you do and then criticises you this does not made a happy marriage, sort of reminds me of my wife, because 'she was always right, and she never said sorry to me' once.
Have you suggested to your wife about going to a joint marriage counsellor, or has she made up her mind and still wants to leave.
This would make it so difficult for you and your daughter, and I hope that she doesn't tell her all the bad things about you.
I would make an appointment with your GP and then tell her that you are getting some counselling, whether this will help her to stay or down the track re-unite the family which I'm not sure that she will take note of this and make her re-think about the situation.
It's never pleasant when a family breaks up, but if you have depression then it's no fault of yours.
I would like to reply again to this post. Geoff.