I agree what it does not matter which one is the real situation. If he was just trying to get me to stop setting a boundary, then it will likely stop when I set the boundary. And honestly I am ok with it because at least I will know his real intentions. If he is worried about losing me, then maybe he will look deeper and try and figure out what he wants. Who knows.
While my long term goal is to R, my other goal is to preserve our co-parenting relationship because our kids deserve that much. I am worried that if H keeps disrespecting me with OW and his dreams of the perfect life despite the costs to others, it will be difficult to co-parent as positively as I would like. I don't want to allow him to continue to hurt me to the point that I hate him.