Darla, sounds like you're doing great with him. One thing occurred to me when you said that he act both terrified but also like he wants to approach and be with you... It sounds like he might be wanting to trust you but reading signals you're unaware you're giving off. You might want to think about how you are thinking and feeling when you work around him. I would bet that your heart rate is up a little bit, and you are thinking, "What is he going to do? Is he going to be frightened? I need to be cautious and not go too fast, I need to be careful if he blows up so that I don't get hurt!" (I've done this self-talk, it's natural!) He is looking for a leader and he can sense any hesitancy or tension in your body that you might have. So, instead, you should put in your head, "I am going to fake this super-confidence until I actually AM super-confident! I'm going to take deep breaths and be calm and relaxed! We are gonna be fine! He is going to feel my confidence and be confident himself!" See if he doesn't seem less terrified and more trusting of you!