Well color us jealous.  Air Force Chief of Staff Gen. Mark Welsh and wife, Betty, met the virtuoso of late night TV yesterday, and Jimmy Fallon and crew seem like they all had a good time. “@BettyWelsh20 and I had a great time at the Tonight Show w/ @jimmyfallon…What a gracious & hilarious host!” Welsh tweeted from his official twitter page. They also met Dolly Parton, Fallon’s guest star of the night. “Pretty cool to thank @DollyParton for a lifetime of giving & watch her rock the stage. My fav…’The Sweetest Gift’,” Welsh later tweeted. Welsh is in New York…