Thank you, I feel like a lot of readers are always saying “ Well why don’t they just leave/cut them off? That’s what I would do it’s that easy.”, but are missing the point that it’s difficult to see how wrong something is if that’s all you’ve ever know.
Also, sometimes it just has to be done for the plot, as infuriating as it is it just has to be done to expand on the story.
I also think the author has done a good job in the couple’s character development.
I do think there may be some fighting due to the older one in the relationship not opening up and communicating with their partner. The younger one seems very emotionally mature and understanding, but may act immature and impulsive due to his partner not communicating with him.
But as you said it is still to soon to speak.

I know it's so frustrating to see him still bend to Garams will, but remember he literally grew up alone, had no friends, barely a mother/father figure, and no relatives as he grew up.
Of course garam coming in and providing him with his first real sense company and warmth (sexual and platonic) on a regular basis will make him get attached to garam.
Plus garam is fucked up in his own views of family and allat, sharing those negative views with someone who understands loneliness and twisting his perception making him think he'll always be alone will stick, especially when he is primarily alone except from garam and his neighbours.
Take it like this, you see people in toxic relationships with their parents all the time, parents are emotionally or physically abusive, and children struggle to get out of the mindset that those parents gave them because of their attachment to them intentional or not. People in toxic relationships see the flaws in their partner and how its negatively affecting them, but they continue to stay because of seeing the good in them. Push and pull, do something bad but do something good and they come back.
Anyway this was just a rant