So should I insist she stick to her schedule? She was just saying on the phone before she picked him up that we should stop switching nights (b/c S11 wanted to stay here tonight).
While I want my son with me... I'm thinking this is her issue to deal with. That, and she will probably change her mind once S11 settles down.
HP, I think I'm probably in the minority, but I'll take my D12 every single time H says he can't or doesn't want to. Every. Time. But he's only done it once, and he doesn't spew at me like your W does. Still, that's my answer. You'll have to consider what feels right for you. We can all offer up opinions, but it's your kid, choose what's best for him.