<P> When Miami Metro detective Mike Anderson (Billy Brown) is murdered by members of a Russian organized crime syndicate, Quinn goes with his new partner Angel Batista (David Zayas) to question the owners of one of the syndicate's strip clubs . He develops a relationship with Nadia (Katia Winter), one of the club's dancers . The club's owner, George Novikov (Jason Gedrick), offers to give Nadia a passport and her freedom if Quinn disposes of blood evidence linking the head of the syndicate, Isaak Sirko (Ray Stevenson), to three murders; if he does not comply, Novikov will send her to a sex club in Dubai . Quinn reluctantly disposes of the evidence and takes a bribe . Novikov does not keep his end of the bargain, however, and threatens to expose Quinn unless he goes on the syndicate's payroll . Soon afterward, Nadia tells Quinn that Novikov forced her to have sex with him . Enraged, Quinn beats Novikov up and kills him in cold blood after he hits Nadia . He stages the scene to look like he had acted in self - defense . Nadia gets her passport, but tells Quinn she has to move on . Quinn then gives the dirty money to Batista so he can open a restaurant . </P> <P> At the beginning of season eight, Quinn is in a relationship with Jamie Batista . However, he still has feelings for Debra, who had quit Miami Metro six months earlier to work as a private detective . In "What's Eating Dexter Morgan?" Debra is arrested for drunk driving, and calls him to bail her out, which arouses Jamie's suspicion and jealousy . When he punches a fellow detective for insulting Debra, Jamie asks him point - blank if he is still in love with Debra; Quinn says no . Later, Debra shows up at Miami Metro, blind drunk, and confesses to killing LaGuerta . Unaware that she is telling the truth, he calls Dexter and tells him that she is not in her right mind, and allows him to take her away . Later, she meets with him to apologize for her behavior, and wishes him happiness with Jamie . </P> <P> Jamie asks Quinn to move in with her, which he does with some apprehension . In order to prove to her and her brother that he is taking his career seriously, he takes the sergeant's exam . He does well, but Batista ultimately chooses another candidate . Frustrated, Quinn tries to prove himself by investigating murder suspect--and Dexter's new "protege"--Zach Hamilton (Sam Underwood). The investigation puts him back in contact with Debra, and they share a kiss . Days later, he ends his relationship with Jamie, but denies that it has anything to do with Debra . When Debra returns to Miami Metro, however, they acknowledge their feelings for each other, and renew their relationship . </P> <P> In the series' final episode, "Remember the Monsters?", Debra is shot by serial killer Oliver Saxon (Darri Ingolfson). Quinn rides with her to the hospital, where she tells him she loves him . Soon afterward, however, she has a stroke that leaves her in a persistent vegetative state . Overcome with grief and rage, he attacks Saxon in Miami Metro's interrogation room . After Dexter kills Saxon in full view of a security camera, Quinn and Batista bring him in for questioning . Dexter claims self - defense, which they both appear to accept . Quinn says that he wishes he could have killed Saxon personally; it is suggested that he knows that Dexter murdered Saxon, but considers his actions justified . </P>

When do deb and quinn get back together
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