Manga

I doubt this story is on here but if someone can tell me the name that would be great. Some girl whose plus sized ships these two guys together. Something happens and she ends up staying home basically crying and when she comes out she's skinny and the two boys end up liking her ╮(￣▽￣)╭
It was funny from what I remember it's something like "you're supposed to like him not me!" Idk