In the new issue of the men's monthly, Tori Spelling's ex-husband, Charlie Shanian, writes about his split from the NoTORIous one.  For Charlie's sake, some things are better left untold!

"Fifteen months into my marriage, I opened the National Enquirer to see pictures of what appeared to be my wife giving another man a lap dance," Shanian writes.

That's how he found out that Tori was sweet on her new hubby and baby daddy, Dean McDermott.

Charlie says he was used and got the news of his divorce in Tori's therapist's office. 

"She had only married me because I loved her and took care of her," he writes. "She had purposefully shown me only 10 percent of her true personality."

At least Shanian has a sense of humor. 

Delivering a low blow he writes, "In the end, I didn't screw up, she did. Well, some might say she screwed down, but that’s a matter of opinion."

Tori's reps have no comment.