Can I suggest some fun stuff for the kids, not gifts but time with Dad on is own just hugging watching movies, eating kids food and some games. Aka RD, then settling in at home, some decorating, choices, planting bushes, things to make home like home and with a forever feeling.
Anchoring.
WW PA will die a death as reality bites and my lovely it will be a distant memory. Your children have one loving stable parent with joy in his heart and love in his hugs. The rest is all noise.
Well WW family, they may say things and truth always comes out in the end, those with empty souls stay empty until they look inwards and repair the cracks.
As long as PA partner is just that a PA partner that's good, if he has a D that he sees that could be a good thing. Especially if WW is running her business at their shared home!
Otherwise I would leave alone, although I confess to apprehension. others wiser than I will guide you and your L too. Plus kids from a stable home with at least one loving parent are more resilient than you think, go have fun in the sunshine and enjoy the most amazing times.
Stepson 24 will realise in time, it will only take time and he will ground, when he does you may find he is one of the loyalist souls. Ultimately for this SS there will be a spell breaker moment, just be there for him, keep loving him and trust in the process. Time will heal and repair.
I truly believe a man with enormous love, courage and determination will outshine any temporary issues. I see you with compassion for OMs D, but detach for this time detach.
Tons of happiness in rainbows
V
Freedom is just another word for nothing left to loose. V 64, WAW