How do I get a man to start lusting for me again (he has 0 interest)

Okay for context we have had like periods where we have gotten like together and then he goes ghost and I think he’s for real done bc I got a boyfriend in spite of him and then was really mean to him and now I think he’s genuinely lost interest in me AND I WANT HIM SOO BACKKKK (I’m gay if it matters in any way shape or form. And he’s my coworker) please help 🙏🏻