Sorry, I haven't been in Language Arts class for 3 monthes. And they don't really teach you how to spell dying (or dieing).
There is no need to apologize, hon. Obviously, you missed many opportunities at the elementary-level to learn Spelling, i.e. dying, months. Language Arts, at the High School-level, is meant for college-preparation ... Not the basics! Here is a hint for future use: If you see a red line, re-think your spelling of the word!