Books where MMC is jealous if themselves

Hi guys!

So basically, I'm looking for a book where the FMC is in love with the MMC. Somehow, through misunderstandings or her purposefully misleading him (to hide her feelings), the MMC is convinced there is another man she is into. Thus, he gets incredibly jealous of this other man not realizing it's him.

It can also be the FMC jealous of herself but I'd prefer if the MMC was the jealous one.

Thanks in advance!