Dh has cheated on me. It's the last star in a long long line of mistakes. We have 3dc, 8,7 and 4. We are telling them Dh is moving out on Saturday. We will co-parent as much as possible and I'm determined not to let things get nasty in front of the kids. Dd 8 is especially close to him and copes badly when he is away overnight with work so this will hit hard. What reason do we give and how best to approach please? I'm clueless and know we only get one shot at this....