Manga with an overly possessive and obsessed male lead?

please dun make fun of me > 3 < but i really love manga with a male lead thats very obsessed with the female lead to an extent.....what i mean is like stalking or something like that ^ 3 ^ i liked aishite kudasai sensei and hakuji.......smut is o.k but i dont like when there is too much > /////// < its too much for me kekeke arigato!!!!!