I rated this manga a 7. The story overall was pretty interesting, in the beginning, I was pretty frustrated. I almost dropped the manga. I'm a sucker for anything "weird"/"strange" ( though I know some of you might not agree with me.) The more I read the story the more I grew to understand not only the female MC's point of view, but also the male MC.
I find that there was a greater character growth for the female MC than the male MC, even when we did get to see his point of view. I don't necessarily like the two MC's but I find them decent. Sure they've made shitty decisions but to the end, they become better. I find the female MC's character growth and change in the story as the best ending for this manga. Every character deserved better even if they made shitty decisions.
I find the plot decently realistic. Both MC's know they both did wrong, the female MC was able to overcome her struggles and thus finally let go for the both of them. I don't particularly dislike the male MC because as I said earlier we see the story mostly in the eyes of the female MC. I also liked the fact that the author didn't push the male MC and the female MC to be together in a romantic sense. They respected the male MC's feelings.
This is all my opinion though, feel free to read the story and draw a conclusion for yourself.