You can't have the male character be a complete imbecile who lies thinking he's doing it for other people or some other bs justification but then turn around and have the girl be missing brain cells
Someone confesses to her, she rejects them but then tries to use them to get with her crush? and now she feels jelous because the guy who she rejected might be mingling with someone else

Someone confesses to her, she rejects them but then tries to use them to get with her crush? and now she feels jelous because the guy who she rejected might be mingling with someone else
