But Dorian said impressionable MG is the perfect candidate to develop Ripper tendencies — to be a vampire consumed by bloodlust, essentially an addict — which would explain why he couldn’t just shut off his feeding to let that person walk away.
So MG asked for help to get stronger, and Kaleb found him a person to feed off.
That’s part of why they’d want to keep him away from human blood, and Kaleb will probably regret exposing MG to that potential addiction.
The midseason finale showed MG struggling to lift weights, while Kaleb was exceptionally strong.