Lindsay Lohan is opening up about her breakup with Samantha Ronson to Ellen DeGeneres.

The 22-year-old actress shared her ordeal with somebody who knows all about a high-profile breakup: Ellen DeGeneres, whose split with Anne Heche in 2000 dominated celebrity news.

In an Ellen DeGeneres show airing Thursday, Lohan tells the talk show host that the breakup with Samantha Ronson, 31, earlier this month “came out of nowhere.”

“I had no idea what was going on. I just hadn’t seen her in, like, a week. She, like, disappeared,” Lohan says.

Though she didn’t divulge details, she made a point to say “I don’t believe in cheating on someone,” quashing rumors the couple parted ways due to infidelity.

Here is the Lindsay Lohan Ellen DeGeneres video.