He just kept starring at you, keeping an eye on you and watching your every move. You turned to look at him and he quickly looked away. After you looked away he continued doing what he was doing

Later that day, he continued to keep an eye on you and was making sure no one could take you from him. A man walked up to you and chatted with you. Xavier immediately walked up to you both and looked at the man

“Sorry buddy. She’s not interested in you.” his voice had a hint of jealousy