It’s not uncommon for wayward spouses to become terrible parents. Forgetful, missed appointments, not keeping to a schedule, not concerned about your schedule, etc. For most things, ensure you have a back up plan in case she drops the ball big time.
You can discuss scheduling with W. Just keep your expectations low. Depending on how she is seeing things, she may feel that she needs to live her life now, and nothing is going to stand in her way.
D
Feelings are fleeting. Be better, not bitter. Love the person, forgive the sin.