Should I write a letter to my Therapist when I am no longer her Client?

I'm thinking of doing this, so that way there is no damage to her professional career as a Therapist. I feel its the safest bet because I know that nothing can't come between Her and I. As much as I say that I Love Her, (in which I do), its not fair to me nor her because she has a profession to uphold. I will Miss her dearly and for how much she has helped me in my way of living and knowing that she has made me feel that I deserve to be Loved by someone, even if its not with her. I know that now. Any thoughts or opinions? Thank You