During a sit down interview with “Entertainment Tonight’s” Nancy O’Dell LeAnn Rimes opened up about her biggest fears.

The 30-year-old country singer candidly chatted about her bouts of depression, fears of infidelity, and suicidal thoughts.

"I feel like there's only about a handful of people that could understand," Leann explained.

"All of the emotions that you feel ... it's like a roller-coaster ride," Rimes added. "Every emotion changes. What you have to learn to deal with is you have to learn how to ride the roller coaster. So I think where people end up doing something so drastic is when they felt like there's no ride to take anymore."

And although Leann never seriously considered taking her own life, she says that it’s “healthy” for that to be an option as long as it remains just that, according to her therapist.

The “How Do I Live” performer also chatted about her hubby Eddie Cibrian, and said she fears the possible of extramarital affairs.

"I would be ignorant to say, and everyone else would think I am a liar if I didn't say yes, and I have at times," Rimes said.

Watch the rest of Leann’s interview above!