You have every right to be on your guard. You did an outstanding job with that convo! Really. Well done! Good job on articulating your no-OM talk boundary, stating your needs clearly, and what needs to happen for W to come back to the M.
It will take a while for W to be fully baked and even more time to re-integrate herself. In my estimation, it'll probably take about 2 years for that process to gel for W.