Meh, trust can become safer, but in the end it is something that must be given not won. No one is ever perfect, or is ever going to NOT hurt us.

Trust comes from the ability to trust yourself, and the knowledge that, even if this person does something that I don't like, or hurts me, that I will be okay.

I can trust myself to trust you. In my experience, that's almost always the way it plays out.