I Became The Male Leads Ex-Girlfriend

I am the villainess in a harem novel. My role as Erika is to be an evil ex-girlfriend. I dont want to be a dumb villainess, so I broke up with the male-lead first But after 3 years, Leo came back to me. I cant live without you. I still like you Im not the girl you should be obsessed with?! The second leads also came to me. I like it when youre next to me Im just a supporting villainess, yet why are all these men confessing to me?! Who should I choose? Note: This was a oneshot promotional manhwa for the novel of the same name but has been serialized!