How do I deal with this.....

found out Sept '16 my wife was in an affair (1 year plus) and was easing me out of the marriage. I found this out as she decided to send a number of emails from her work to her home account which popped up on our home PC. This included a number of photos, videos and instant messaging transcripts. Needless to say a divorce is on. Bullet points are weekly hotel meets, weekends away, secret meeting with my youngest (3 years old) so 'he gets to know you as DAD', him and his kid turning up at events where we were as a family (Even had the cheek to chat to me at one), him going on a family holiday with my wife and kids (She's Dutch and the in laws looked after the kids while they 'went out'). The instant messages cover all and everything including parenting my kids (sickness, behavior, chastising etc), 'sexting' and 'video sexting' while my kids were in the bed/whiles I was downstairs/whilst I was in the room!!! You name it it was there. Within the same week, my wife got a non-molestation order out (Danger to her and the kids for many years.... Discharge from court as no facts or evidence existed). So there's the background..... Now we are still in the same house (Bang goes the danger part...) as she wont go without the kids because she's mum and I should leave apparently. In the messages that cover Feb to September of '16 there was a complete plan on how to remove me from the home\kids lives and make it look like she was still sweet and innocent including how to morally introduce him to everyone. Real nice people hey? Its killing me she's got the front to rub my nose in it and not do the decent thing and leave. October she signed divorce papers for adultery (Not without a fight). The trouble is she still wants me removed from the kids lives as much as possible, move him in and I quote 'He will become their dad'. Of course they still want me to pay. How can I fight this and I don't mean the paying for the kids part. They are my kids too. Why dont I get the kids? I work locally to the home so I was up till September taking the kids to school and back, looking after them while mum worked late/when away with the girls (?) etc. Is there anything I can do? Why should I lose my kids just because shes mum? Can I stop him being around my kids? Someone help me please...... Tweet