I'm so sorry runlola
I've gone through what you are describing. At times I view therapy as one LONG grieving process. Grieving the loss of the caring parents I never had growing up. Grieving that my therapist can't be what I want her to be. Just painful, awful grieving that lasts a long time.
The best thing you can do is talk about it. Reality often hurts but breaking the illusions is an important part of the process. Then, you can accept what the therapist can offer and figure out what to do with the emptiness.