Thanks for all your comments! I agree - it's not something that could be "right or wrong" per say - but it could shift towards one or the other depending on the nature of the client/therapist relationship.
For one relationship, the same gesture could be healthy and normal, but for the other quite unhealthy and not in the clients best interest.
For me, it wasn't: "Is it OK I hug you farewell since we are saying goodbye?" It was me going to walk out the door and then, "Come here, lets have a hug" ..... such a simple affectionate gesture - but after reading that she felt she was reinforcing my feelings just by seeing me afterwards made me feel she could have thought about her words and actions a bit more... if this makes sense?
Wow! It's been a journey - but I hope my experiences will help others