When you were practicing for a match, namely a Quidditch match (broom flying) you accidentally hit the spear and you both fell at the same time and what's worse, you forgot to apologize to him and immediately left

• the next day you met him again and someone bumped into lance and immediately apologized when lance was about to pick up the item that fell you accidentally stepped on the item until it broke and made lance very angry but you apologized because of the accident but he don't care about your sorry game*

"I don't care now come with me"

he said with an angry face and cold words. He dragged you to his dorm room and threw you on the bed and slapped you several times until you cried

"Don't cry"he said coldly and started pushing you onto the bed and started stripping you