[Her eyes widen and she shakes her hands, trying to stop him from going further.]
That... That isn't necessary! You didn't do anything. [Especially not anything that he has to apologize. Reaching out, she rests a hand on his shoulder, comfortingly.]
It's okay. I know it isn't an easy thing for a lot of people to come to grips with. Besides, it wouldn't have been the first, nervous, reaction. [An understanding smile, before she becomes a little more somber.]
There's more important things than what if scenarios, anyhow. I have something important I wanted to talk to you about.