Irish, I agree with Cali. An MLC'er is a crafty animal in the fact that they can lie to themselves easily, so lying to someone else is very easy.
You handle things so well with her. That healthy boundary you set for yourself is important, more for you and your daughters than her but being able to validate what she is saying.
Again, agree with Cali, she is not done. Most people don't know the length's an MLC must travel to become completely whole. The length of time is longer than most people care to admit.