I’m also not sure of everything going on with G since he’s from the center, but he does seem to be very grossed out by the animal changes in people. Like detrimentally so for both his mental health and any hybrid person near him. He gives “death is a cure for your ailment” vibes to me sometimes but idk if that’s just me. I think the biggest reason K doesn’t like G is just because K’s hybrid instincts are a lot for him sometimes and he was really torn between having his eggs and also never having to lay them again. It seemed traumatizing for him both in laying them and having them taken away. So I think K was never really 100% on board with taking the medicine to stop laying and having G force him to take it made him upset because even though K didn’t necessarily want to lay more eggs it probably still felt like his choice was being taken away

I'm not sure if I missed anything, but why is K distrustful of Doctor G? If I understand this correctly, the center marked the human livestock for disposal and they were sent to a farm. And when K laid eggs, the center took an interest in the farm which means they want more produce from K... So if Doctor G is also from the center, why in the world is he offering drugs for the livestock to control their animal urges? Won't that stop them from producing goods?
Sorry, I'm here for the plot, would appreciate if someone could help me understand this.