Muse in the Harbor chef/owner Matthew Guiffrida is set to marry his longtime girlfriend Sheila Mullahy on April 21. Mullahy is an attorney who helps out at the restaurant when it gets busy (i.e. every weekend). Who will mind the stoves while Guiffrida honeymoons for a week in Jamaica? Well, his sister Shari has joined the line at Muse. “There’s another pair of Guiffrida hands here now!” the chef said.