I'm going to roll three Gabriel Resistance rolls here. If she aces all three, she'll run away; she's faster than Lily is, and won't be Entranced in that case. If she fails at least one of them, she'll be Entranced again, in which case we can assume that the Concentration Repair Biology will eventually go through and get her all the way down to Transformed.
Resistance 1 (DC 22, -2 from Impaired): (1d20+10)[21]
Resistance 2 (DC 22, -2 from Impaired): (1d20+10)[19]
Resistance 3 (DC 22, -2 from Impaired): (1d20+10)[18]
She really tried, but that Impaired did it's work. Gabriel is Transformed!