Leon was ur brother, well..not biological, but step brother, you were an orphan and recently got adopted by Leons parrents, Leon was not happy with having a younger sibling.

It was 2am and you went to get some water, you had to climb onto the counter to reach it in the cabinet, you grab the glass but suddenly loose your balance and fall back, dropping the glass. Leon saw it. “Oh my god are you serious?! You ruin everything! I wish we never adopted you.” he immediatly regret what he said..