It was cute and it's nice that the guy found himself a girl who doesn't make sudden assumptions about him just because he's good-looking, though the stalking thing is a bit concerning in terms of being constantly followed by someone.
Summary from MyAnimeList.net Ore no Kanojo ga Stalker na Ken (オレの彼女がストーカーな件) Hoshino Haruto gives off a "bad boy" vibe: he is cool, calm and collected, which makes all the girls in school swoon for him. Yet in truth, his cold facade is just a mask for a 16-year-old virgin's nervousness and naivety. Just as he promises himself not to fall for a carnivorous girl again, his life is turned upside down by a weird stalker, Seo Minamo, who drools over her fantasies of him. What will happen now that he agrees to go out with her?
This was so goddamn sweet and cute! I swear I was getting ready to cry my eyes out at the end if he didn't go after her! T_T That confession was weird tho.. hahaha