Erin and Eddie clash when Eddie intervenes in a murder case and Erin's personal life on Blue Bloods. "Past History" is the 13th episode of the show's 13th season.
Larry Manetti guest stars as a grieving grandfather who wants Eddie to punish the dealer who sold a fatal batch of fentanyl to his grandson on Blue Bloods Season 13 Episode 18.
Things come to a head between Eddie and Jamie when he invites another woman to crash at his place on Blue Bloods. "Personal Business" is the eighth episode of the show's seventh season.