I don't believe you over reacted at all. I think your response shows just how well your recovery is going.
Please remember that 'counselors' in rehab facilities are focused on the recovering A and many do not understand or have no 'inkling' of what co-dependency is and soem of them actually have it also.
So, in my eyes your response was very appropriate. Her recovery is not your responsibility.
J M H O
Good job!!!!!
Love and hugs,