Though not specifically answering the OP's questions, I'm going to chime in with something I see cropping up in a few responses: that trust needs to be built up over time.

Sure.

Of course.

But so does mistrust.

When I enter into a relationship, do I immediately trust the other person with the deepest secrets of my being? Hell no. But if they're a little late or get a call from a gal that I don't know, do I come unwound? Again, Hell no. A relationship starts a on clean slate: there should be no reason to implicity trust OR mistrust a person until they give you reason to in either direction.

I had a relationship for a period of time with a "gentleman" that questioned my relationships with my male friends and asked for proof of my whereabouts if I were late or otherwise off the agenda I had started my day with. He would justify his behavior by saying, "if you were doing what you were supposed to be doing it shouldn't matter that I ask," or, "you need to understand that my trust has to be earned." Yeah... My response to that was that his mistrust should have to be earned too and jumping hoops to nurture his insecurities wasn't AT ALL what I wanted out of relationship. We talked about it, we talked about it once more, then he got released, so to speak, and I've never regretted that.