we will get the chance I feel we deserve
Maybe rephrase your thoughts to "I will give WW the chance to be part of the M that I deserve." Your WW is still thinking primarily about herself. Look at her actions and her words~you are excluding her from spending time with you and the girls, she no longer feels comfortable in your home.
Keep working with 180. It's hard to do, and no one expects it to come easily. Just focus on you and the girls.
You have handled yourself with such dignity during this time. Your daughters could not ask for a better and loving father.