I think that it is your job to protect your girls and their mother is making dangerous unhealthy choices. It is best for all of you to stay away from her right now.
Me 52 H 44 T9 M 5 BD 12/11 H split 8/12 OW moved in 12/12 OW gone for good 6/14 We get closer again 9/14 SD 13 Me 4 Grown
Accept what is...let go of what was and have faith in what will be.