Kids are the exception to going dark. Don't get your D in the middle of your relationship with your H. If she wants to talk to him you can send him a brief text letting him know and arranging it and then go dark for yourself only.
We need more information about your relationship to be able to help more.
Me42, H40 D12, S8, S7 A revealed: 7/13 Sep 4/14; Agreed to D 1/15
