I need stories where one of the characters is yandere batshit crazy and other one have men...

I need stories where one of the characters is yandere batshit crazy and other one have mental issues or is cold... Emotionless...

Or the yandere character trying to make his lover jealous by flirting with men and women but his/her lover doesn't give a fuck

Pls suggest me actual good ones (i want the storyline to be good too)