Perhaps you’re projecting a little? You should give author-nim credit for making Andrew self-aware of his darker thoughts and the fact that he's not acting on them. If the case were that he was already trying to monopolize Luke then there’d be some merit to what you’re saying.
It would be nice if readers reserved certain judgments until the story reaches further into their relationship. They’re still fresh into things.
You say you love the plot, but are you actually reading the story? Because Andrew’s position is explained and it makes sense why he clings so much to Luke as he’s the first person to actually be genuine and loves him for him. So I kinda don’t understand what your position is in this case…
I really loved the plot and the art and no hate to the author but why does every seme needs to be that black flag deep down and green flag on the outside i don't get it why they have to push that dark possession trope in every yaoi these like i know you can ad depth to Andrew's character without having to add that dark possessive trait I'm possessive at some level is good and adds to the plot but here it's just not sitting right with me it's making this story just blend in with the other trash yaoi but i was really liking the plot until this really bad attempt yo keep the plot moving