I first reading Bitou Lollipop and come to this with full excitement. Iketani-sensei gives us many very interesting plot. It's natural to be pissed off with the development but her stories are well-build. The characters don't have to perfect, you should do this and that and blah blah blah. I simply love how things going and ended. She is one of best mature shoujo author we can get.
I clicked the spoiler tag now but I can't wait for the next chapters!
UPDATE :
I have read the last 44 and its epilogue. I can say with confidence I love the ending. It's sad and I got to see
A-chan's feelings more clearly. Everything go back to them in the end. It's not something acceptable (I myself won't forced you to) but their happiness matters.
basically after the entire manga is being spent on her development and remembering stuff on her boyfriend, at the very end she gets together with her step brother...
I am so conflicted ,drama in thsi manga was soo good but
whyyyyy did she end with her brother I cantt I felt like that love caused soo much problems in their life and that the conclusion would be both of them finally letting go and being free, idc if she did not end up with Kai I just didnt want the siblings to be together. And ur telling me Ma-chan is just like "sure ok, my siblings are dating each other whatevs" JUST like that. I would go crazy honestly".
I feel so conflicted that ending kinda soured everything for me even tho it was so good up until the last volume