This "Advice Column" of responses is a textbook example of missing the forest for the trees.
Perhaps this young lady is a nice, quality individual, doing what she can to navigate through life despite some significant challenges. Or perhaps she is a train wreck.
In either case, the best "Advice" is for you to take an oath to never speak to, contact, or see this young lady again. Never. Don't even allow yourself to think about her.
If she is a quality individual, she doesn't deserve to have a someone like you in her life. If she is a train wreck, she certainly doesn't need another derailment placed in front of her.
Please, for her sake, and for her children's sake, forget that you ever met her.