Jigoku Shoujo, Jigoku Shoujo Futakomori, Jigoku Shoujo Mitsuganae. sort of the closest thing I could think of that I came across. I totally know how you feel though about not being able to remember. It happens to me a lot 'cause I forget easily. Good luck on your hunt for the anime.
A lot of people I know (well those I live with) don't understand why I watch anime... sigh I guess I watch anime because I find a lot of anime that I can relate to...It's also something different that normal shows or cartoons. I also like the fantasy aspect it offers... For a moment it kind of let's me go to totally different place and that's something I am very thankful for. I love the characters too... Illustrators can be sooooo good at their job.. ugh
I usually only watch the opening and ending for the first and last episode unless the opening and ending changed somewhere in between or something then I'd watch the opening and ending for that particular episode. Guilty Crown was the only anime where I watched the opening and ending for all episodes (UHMM I don't know why, but I've been waking up with the anime's soundtrack stuck in my head). I also watched the ending for all the episode of parasyte. haha.