It was just over two years ago that LeAnn Rimes was caught cheating on then-husband Dean Sheremet with her 'Northern Lights' co-star Eddie Cibrian. And after weathering the storm that followed, Rimes admits she learned a lot.

"I know I didn't do it the right way," Rimes says in "Backstory: LeAnn Rimes," a new special airing Sunday on the Great American Country channel [via UsMagazine.com.] "I didn't have the tools to know how to do it the right way, how to let go the right way. I'd never been taught that," she confesses.

The 28-year-old continues: "I have the strength [now] but I didn't at the time... So, it got really messy, but I have learned a lot from that. And I'm not glad it happened, but I know why it did."