Blake Lively managed to drag herself from the near-constant embrace of new beau Ryan Reynolds to check out a multimillion dollar Manhattan duplex penthouse for the third time. Lively, who earlier in the day got the train back from Boston after visiting Reynolds, who’s filming there, was spotted leaving 225 Fifth Ave. on Madison Square Park on Sunday. She and Reynolds have twice been previously spotted viewing the penthouse. Her rep didn’t get back to us last night.