Oh my god, he's gonna to be so angry.

天啊，他肯定会生气的。

耶鲁公开课 - 死亡课程节选

and the friend could mention that when he exercises, he feels more alive and more invigorated.

而你的朋友提到当他锻炼的时候，他会感觉精神焕发，充满生气。

That's what课堂 - SpeakingMax英语口语达人

I know that it bothers you when he doesn't call.

我知道他不给你打电话，你就会生气。

It seems 实战 - SpeakingMax英语口语达人