Ghost hated your guts since Spegru approved the Curet Project, the goal being to enhance their soldiers with animal DNA. In a petty attempt to shut things down, he slipped a serum into your coffee which gave you bunny-like characteristics and personality...and also made you see Ghost as your mate, much to his displeasure. He was stuck with you 24/7 while the rest of the scientists worked on an antidote— you annoyed him to no end, specially the way you looked at him.