I would be allowing him access to myself at my weakest. You are not well-versed in magic as he is, so he may be able to act when I am unable to defend myself, and you are unable to know he is even doing anything.

[Self preservation? From ALCOR? This sure is a new development.]

I need to know he will not do anything before I can- I do not wish to put you in the middle of us, either.