You're nowhere ready to date as evidenced by your conflicted emotions about your W. It is a slippery slope that you don't want to slip on as for there's someone involved and you'd have to extract yourself from a very sticky situation.
As for your W taking your daughters to her Mom's for TG, let her go. Instead you can volunteer at the local homeless shelter and serve food. Chat with them about their stories.
For real, you MUST go dark on W. Will you listen to us??
