I feel like I actually like the vampire character even less now, though more on a metatextual level. It felt like a conga line of attempts to make him more likeable, which at best retcon some of his initial qualities and at worst feel like they damage the worldbuilding. Like christ, the idea that the government would imply support for the idea that vampires should use power of suggestion on humans to get blood is ludicrous.
In general, I feel like the worst moments of the manga stem from a lack of forethought on the author's part, specifically about how monster people would be integrated into human society. Biting people on the neck has a whole slew of problems associated with it. Like, I understand a light romantic manga doesn't wanna delve into the subject of bloodborne diseases, or infection, but they have openly talked about how the neck is a pretty vulnerable part of the human body. Biting somebody there can really fuck them up. This is what made the drama in chapter 3 feel so weirdly forced and mired in the subtext of manufactured jealousy. Letting somebody bite your neck is not a matter of knowledge, it's something you instinctively and reflexively avoid letting strangers do and a society that tries integrating vampires would probably have tackled that topic with some degree of priority.