I think that in my case it depends on the quality of the rest of the story. If I'm reading a book and hating every minute of it when I get to the bad ending it would just become one more thing to complain about later on, like a cherry on top of a pile of garbage.

It's a lot worse when the book is actually good, but the conclusion isn't. It doesn't necessarily ruin the experience but it becomes a lot harder for me to recommend the novel, and if I do, I will always mention that the ending isn't that great.

Regardless of that, I'm still willing to read something even after hearing the ending is disappointing if the book manages to interest me enough.

I’ll start it off. I dated this girl for a while and then we meet up one day and she says that she want to break up I was confused because I gave her all my love and attention so I asked “why?” She said because I’m to nice. That shit just hit really hard even though it was stupid.