Remember, we can't be so busy steeling ourselves against our fears that we inadvertently bring them into being. I'm thinking about Michele's story where she was returning from a trip, worried that her H was resentful, and she was all ready to act defensive. She decided to act as if there was no tension and things worked out much better.
Be your warm and charming self (who may have been up to all sorts of fun and mysterious things while H was away...)
Give yourself time to think about any info you get. No need for hasty reactions. Better to observe and think about things.