S.L.
Hello V.,
I have faced this particular situation as a child. The best advice I can recomend is find a child psychologist that does play therapy and you could also be in the room doing a family therapy session with the kids and have another opinion as you are also frusterated I am sure the kids are as well I was. This help in so many ways 1. the kids learn their idenity 2. they know you will always be there for them 3. it is documented if it ever goes to court and need a witness for the kids 4. you no longer are the bad guy and you have a guide 5. you have some protection with supervised visitation as needed 6. you will become closer with your children as they grow. Remember the one great thing about being a mom is watching our children grow and blossem into great young people who are making great choices and becoming more independent and also can show love and respect throught adversities in life.
Give the kids a hug and a kiss and remind them you love them when the dad questions arise and know you are their best advocate if you do not stand up for them no one else will. The kids need you to help them through this difficult time in their lives, AND you can do it. If God brings you to it God brings you through it. V. please feel free to message me anytime as you need I will give you the support you need that I can offer and sometimes it may just be to listen.
Remember take care of you first so you can take care of the kids. You are a strong mom or you would have never asked your question.
Please let us know how it goes and what you decide to do might help more people.
S.