I write the first one (letters or email - I don't want her reply - I usually just want to get something away from me) I see or I could call or I could schedule another appointment (I am not certain with the first - she is becoming more and more retired - but in the past I could) - I could probably even text but I am not much of a texter with anyone an can't imagine a reason to do it with a therapist except for appointment situation (running late sort of thing). It has not made dependent upon her.
The second one, just about every week, tells me to call her if I need to (there are very few reasons I would ever need to call a therapist - in 5 years I have probably called 4 times.
The few times I do contact them, they always seem rather over the top in saying good for contacting me (especially the second one). None of these things have turned me into being obsessed with them or wanting more contact with them.