The great thing about being 56 is that you get to the point where you don't care much if people understand your interests. For the sake of the woman I love, I try to keep my "geek" in the garage, talk to her about it sparingly (no, your wife really doesn't care about the newly discovered paint scheme for the Honest John rocket flown only twice during test flights at White Sands in 1953--no matter what she says.), and act like a normal person most of the time.
During launches, or in the company of only rocketeers, I can fully let my hair down and be a rocket geek, dork, nerd.
Same thing with ham radio. It's in the garage, and I try not to bore her with explaining the strength of the latest tropo opening. She really doesn't care--though she is patient and always smiles as she feigns interest.
Happy wife, happy life.