My advice on this would be to remain as honest and open with your children as possible. My parents has a horrible divorce in 1997 and there was no honesty just name calling and worse so I always felt torn between my parents.

I've recently divorced and while my daughters father has turned into a horrible person, that's my problem with him and not my daughters. Because he's been such a rubbish father she is slowly realizing what he's like but she's doing that on her own without my help. There's nothing worse than trying to poison children against their parents. Your separation is between you and your wife.

I really hope things go well for you and wish you luck xxx