^I don't think the fact that "this is a mess now" is at all related to their college life. Some other mangas depict college life really well. I found the first few chapters of the college life arc good.
I do agree this manga should've ended earlier. I don't know. I used to really enjoy this manga, and I have a signed copy of the first book on my shelf. It's one of the first Yuri series I ever read.
I understand miscommunication, but Kase's jealousy and her trying to dictate what her girlfriend wears, and then Yamada continuing to be infantilized to a certain degree caused my opinion of the manga to sour.
I'm still going to keep reading, though and maybe reread some of the earlier manga chapters.