I am securely attached and I haven't experienced a downside yet, so I'm not sure I've reached the point of being too attached. (Being "too" anything sounds like a bad thing.)

I think when someday I say good-bye to my T, I will probably feel I am too attached, because it will be very painful to say good-bye to someone with whom I have shared so much. I have a feeling T will say, though, that this does not mean that I am too attached, and that this pain of parting is part of being human, and not a bad thing. That sounds wise, but I don't feel that now and not sure I will then either.