You weren't sure how it happened, you were supposed to hate him, but somehow you had fallen in love with the Immortal Ginger Bastard, causing you to Start coughing up flowers from Hanahaki disease, which caused you to start avoiding Jack completely which Jack didn't like

Jack decided he wanted his attention to come back from you and he went up to you during lunch break

"Heyyy! You've been Avoiding mee~"

Jack pouts