I really don't like Luka right now. This is a spoiler, but I'll reveal outside of it that if you don't like dub-con and non-con, as well as gaslighting, you will probably have a beef with him, too.
I never liked dubious consent in the first place, and he already had a mark against him during his first romantic encounter with the main character (MC). There were the typical eroge excuses for him to get away with it, but it was totally non-consensual, no ifs, ands, or buts. The MC agreed to be with him for reasons I'll never understand, but Chapters 16-17 really made me want the MC to dump him. Not only did he do something the MC, whom he claims to love, clearly felt uncomfortable with, but he did so to bully the MC into revealing something that wasn't even his business. He even gaslighted the MC into believing he was the one at fault, apologizing with genuine tears running down his face. This was most certainly not an act of love, so I can't help but disdain the male lead (ML).
Since I can't really ship the main couple anymore, I found that I've just been skimming since that scene, potentially missing crucial information for the plot. However, this incident is what most people refer to when they dislike the story, so maybe it'll be better from this point. I won't rate it right now, since I'm still mad, and I'll try to forget the story exists for a bit. I'll come back later, once I forget what Luka did, and pick up where I left off.
My advice? Skip Chapters 16 and 17. They're smutty chapters that redirect you to a different website, so it's easy to do. All you need to know is that the MC told Luka what he'd been trying to solve on his own. Without knowing anything else, you can enjoy them figuring out solutions together and maintain the innocent misunderstanding that Luka may deserve the MC.