Yandere vs Yangire?

The virgin yandere: "I saw the way you were looking at that girl. Don't worry, I'm going to make sure that slut doesn't tempt you again.

The chad yangire: "I saw the way you were looking at that girl. She'll be waiting for you tonight. Huh? Look, don't ask stupid questions, she's going to say yes. Fi~ne, I'll ask her knifely. Hm? No, you're just hearing things."

Is there both a yandere and yangire fighting over the same person?

Is there a yangire attempting to get their love interest a harem?

What universe do they live in?