When I read your post I thought about how unconsciously we sabotage relationship. We may have some skewed perspective or some expectations of how we think someone is going to respond to us. And in subtle ways we feed this expectation until it actually happens. Kind of like I thought this was going to happen and then look here it has happened. Not knowing that our unconscious actions actually played a role in making it happen. When I read your post, your T's awareness this issue is allowing her to avoid the pitfalls and remain steadfast. Even though you are convinced that she is going to reject you at some point. She seems to be challenging your unconscious expectations and along the way making you aware of them.