People pleasers can get the short end of the stick. I do not want the same to happen to you. Please use this time to prioritize: (1) Kissak, (2) Children, (3) Go Dark. Your H needs time for a turn-a-round. Of course you want him back - but this time, for eternity.
If Kissak is #1, do the GAL, and incorporate your children with it. As for contact with H, keep it minimal. Do not talk about any issues except the kids. If you speak with him, remain upbeat. If he wants to mention other topics, cut the conversation short. Let him miss you. He's been treating you like a door mat. How dare he ask you for advice regarding OW Also, you do not want him to move onto another R yet. So, get moving and prioritize!