Boston Blue found a way to reunite Donnie Wahlberg and Marisa Ramirez on screen again as Danny and Baez's romance heats up - but they weren't the only couple who felt love in the air. During the Friday, October 31, episode of the Blue Bloods spinoff, Danny (Wahlberg) took a selfie in Boston that he sent to Baez (Ramirez) while suggesting their next date. Blue Bloods fans then got a fun Easter egg when Danny's partner, Lena (Sonequa Martin-Green), picked up a photo frame on his desk that showed him with Baez and sister Erin (Bridget Moynahan).