ORLANDO, Fla. – A University of Central Florida student is fighting back after school officials issued a lengthy suspension for grading his ex-girlfriend’s break-up letter and posting it to Twitter.

Nicholas Lutz gave his former girlfriend a D- for an apology letter she sent following their February breakup, and the marked-up letter – complete with spelling, grammar, and syntax corrections in red ink – gained a lot of attention when he posted it to Twitter.

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Well over 121,000 people re-tweeted the graded four-page note, which also generated stories from numerous national and international media sites.

“Long intro, short conclusion, strong hypothesis, but nothing to back it up,” Lutz wrote in his concluding remarks on the letter. “Details are important. If you wanted to be believed, back it up with proof. You claimed that cheating never occurred, but place blame on yourself, then what for?

“Need to stop contradicting your own story and pick a side. While this gesture is appreciated, I would prefer details over statements. Revision for half credit will be accepted.”

Lutz did not identify his former flame, who signed the letter “Elizabeth.” He told WFTV she does not attend the University of Central Florida.

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“Looking back at it now, it’s probably the craziest thing that will ever happen in my life,” he said. “My main goal was never to expose her. It was to show the emphasis on the letter.”

Regardless, UCF officials took it upon themselves to investigate the business marketing major after his ex-girlfriend filed a cyber-bullying complaint with the Volusia County Sheriff’s Office, Orlando Weekly reports.

Six months after the infamous tweet, UCF sent a Lutz a letter to inform him he’s now on probation, and suspended from school for two semesters for allegedly violating the university’s codes of conduct involving cyberbullying and disruption.

“If they can do that to me, it can happen to almost anybody,” Lutz told WFTV. “That’s upsetting.”

The student is now working with attorney Jacob Stuart to appeal the suspension.

Stuart said suspension violates Lutz’s free speech rights, and “that should really, fundamentally, concern people.

“Not only those who are students,” he said, “but people who believe in the idea of freedom of expression.”

Lutz said the suspension followed another letter from the university that alleged his tweet may have constituted criminal activity.

WFTV reports the county prosecutor the ex-girlfriend’s “never pursued” the cyberbullying complaint.