A bit disappointed

Please don't hate me for my opinion-
But honestly, I was already a bit disappointed with this manga, so the ending seemed to fit it well lol
I've stated this before, but as someone who is studying psychology, a loooot of things in the story just never fully added up. And a lot of things, I believe, still needed to be explained.
I think the beginning and a lot of twists and points in this manga were very interesting. But the execution always left me a bit disappointed. It seemed more focused on sex rather than someone truly dealing with Illness Anxiety Disorder. I didn't even mind the sex- what I did mind was how quickly sex was thrown into this manga and the amount of sex that shadowed over the plot. I liked Kurose's dark personality and double intentions. I also thought it was interesting how Shiro's IAD came about and how it manifested into something so serious.
But the ending just makes me feel like a lot of points were lost. The ending was cute, and could have been a good ending if a lot of the sex scenes and etc were thrown out. But so much information was thrown into the middle of the manga that I feel unsatisfied and, like everyone else, wishing for more.