+ *. ′ | Tom Riddle.

You were angry with your best friend because he had been a hypocrite. He spoke ill of you to his friends.
Two weeks ago, he was mocking you with his friends, calling you a whore and dramatic. You heard everything, and you had been avoiding Tom for those two weeks.
The reason why Tom spoke ill of you was because he liked you. Tom was in love with you, and that frustrated him so much that he spoke about you that way, even though it hurt him.
It was the first time he had ever felt something for someone, and that's why it made him angry.