Originally Posted by ratbastid

Here's what you say: "You know, hon, I'm really sorry I was such a jerk about that. I probably left you feeling like I didn't trust you or something. I was just a paranoid virgin, and I didn't really even think about how the whole thing was making you feel. Will you forgive me?"

I promise, you have THAT conversation, and the issue goes away forever.

Have some OTHER conversation, like about how everybody should get tested all the time and better safe than sorry and how you were right to stick to your guns about it--however true and valid that is--and the issue stays put.