This character is either impatient with everything or this is just terrible writing (I know I shouldn't judge, but it feels that way).
Context, there's this book that I bought recently and the character in the story seems to be impatient for almost everything because of the way it's written (along with other errors and grammar I seen so far).
"I'm going to the mall" I said impatiently. Even though there was nothing that indicated that they were getting annoyed at something. This wasn't written in the book, but I wouldn't be surprised if such a line exists.
Also this is a traditionally published book, not an indie.
Maybe I'm just not in this book's age group. I tend to read YA to get a grip on how those books are usually written like, don't want my teen characters talking like they are already 30. lol