When a woman named Elizabeth wrote an apology letter to ex-boyfriend, she should have proof read it before sending it to him.

Nick Lutz, a student at Florida Stetson University, promptly graded the letter.

Citing problems ranging from the length of the introduction, repetition, spelling errors and the quality of her handwriting, Lutz's red pen made notations throughout the letter.

Unfortunately for Elizabeth, it seems his greatest critique was the lack of proof and reasoning to back up her statement that she did not cheat on him.

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Her grade paid the price, with Lutz giving her a D- and 61 points out of 100. But he did offer her a chance to revise the letter for partial credit.

Other readers on Twitter were quick to point out more possible point deductions. The photos have been retweeted more than 100,000 times in just a few days.