Season 2: Till Death

Gabe’s outright offended that Cat would distrust him after all he’s done to
prove to her that he’s changed. Gabe looks into Vincent’s eyes and tells him,
beast-to-beast, that he never set eyes on that vial in his life, and it’s an
admission Vincent has no choice to believe, since he would have been able to
detect Gabe’s lie with his abilities (however, in a precinct scene with
Vincent, after interrogation room, Cat mentions the possibility  that a former beast would know best how to
avoid another beast’s methods of detection. Did Gabe just game the system?).

A big amount of the episode was spent to try to save Gabe and keep telling
us he is now Mr. Perfect and that he did every thing to redemptive himself , he
did every thing to protect Cat and Vincent to make up for his fault , he earned
his second chance , it is not fair to identify him for his past not his
present. Or, they spent 10 episodes destroying VinCat and making Vincent as bad
as Gabe was on S1. Exactly to prove that the bestial side of these creatures is
almost uncontrollable and it takes a great man to overcome it. And this man is
Vincent. The other 3 episodes were about Vincent getting out of his dark place
and starting to find his way back to himself, getting rid of his brainwash,
anger, confusion and everything else that caused his doom. Gabe didn’t have any
evolution while Vincent had a whole journey of descending to darkness and
coming back to the light. Gabe is there only to provide an antagonist to
Vincent, the same way Tori was there just to provide an antagonist to
Catherine. So now the big question is: HOW THEY CAN FIX THINGS AND SOLVE

Just my speculation.