Someone in your circle of influence is hurting.
Perhaps he is criticizing you to cover his pain. Perhaps she is isolating herself from you because she can't call out to you for help.
How do you know you are the person with the tools to help? Because you are on the front line of his/her attack.
So now what? The last thing you want to do is present yourself for more ugly encounters.
Taking a lesson from the playbook of Jesus, I think we suffer the attack or rejection, recall the love in our heart for that person, decide in prayer if we are the one with the right tools for now, and reach out in wisdom, clarity, and tough love, all tucked inside a demeanor of kindness we may or may not feel.
Of this I am sure: he doesn't want you to walk away. She has only a tiny voice left pleading for help.
Someone in your circle of influence is hurting.