The Normal Bar data show us that even in good relationships, trust is shaky. Having complete and total confidence in a partner seems to be a struggle for most of us.
You may have to perceive trust as an inner knowing that utilizes your intuition, your knowledge and the knowledge of others. You have access to this knowing when you let go of your fear of not being enough or having enough.
The irony is that no matter how guarded we are, how thick the walls we put up, no matter what we do to try to keep ourselves from getting hurt and disappointed, it usually happens anyway.