"There must have been something big for someone like you, who is well-liked by everyone, to get angry."
"There must have been something big for someone like you, who is so well-liked by everyone, to get angry."
"there must have been something big”「よほどの事があった」
"for someone like you"「君のような人」
"who is so well-liked by everyone" 「皆に好かれる」
"to get angry" 「怒った」
[よほどの事](https://eikaiwa.dmm.com/uknow/questions/36566/)についてもっと詳しく知りたい方はクリックしてください。
You're liked by everyone, so something big must have happened for you to have gotten angry.
"皆に好かれる君のような人が怒ったからよほどの事があった"
- You're liked by everyone, so something big must have happened for you to have gotten angry.
- Everyone likes you, so a lot must have been going on for someone like you to have gotten angry.
- For someone like you who is liked by everyone to have gotten angry something big must have happened.
オーストラリア 
アメリカ合衆国 
