Guiseeee halppp plsss

So I'm looking for this really interesting manga I read a while back, I don't remember the title. But it's about a nice popular cute main girl who is dating her handsome boyfriend and this weird left out UGLY fat EVIL loner who is jealous of her life and who is also in love with her boyfriend jumps off the roof and tricks them into switching their bodies/souls with this weird ritual. Basically the boyfriends is cold hearted even though he knows the truth abt the two switching bodies but he doesn't care bc he only liked her for her looks, and nobody believes it's her EXCEPT for the second/main guy who I believe likes her so he can tell and defends her. But even though they switched bodies she still has a good personality while the other girl is still nasty. Lolol...something like that. Basically I never finished it so trying to get back into it, if you know please link of lmk the title thnxxxx