Shock to the system.

Selling Sunset star Chrishell Stause is all talk about her split from none other than Matthew Morrison, yes, you read that right. Before she became a star on the hit reality show and before he made it big as Will Schuester on Glee, the pair were quite the item. Chrishell has revealed that from 2006 to 2007, she was actually engaged to the actor, revealing all about their romance and eventual split in her new book Under Construction: Because Living My Best Life Took a Little Work. In an excerpt published by E! News, she wrote: "I’m thankful for where I am, as painful as some of my breakups may have been. I dated Glee actor Matthew Morrison in my midtwenties, and we fell in love and got engaged." "I didn’t fully understand what a healthy, solid relationship looked like, even though of course I thought I did. "If you’ve seen Selling Sunset, you might know how that relationship ended because during one of the on-camera interviews I said, ‘If I ended up with the person I was with when I was twenty-five, I would want to kill myself…Yeah, you can google that. You were a d***! Sorry!' "A lot of time has passed since that relationship ended, and we can both laugh about it all now. It’s not like we’re hanging out and bonding every week, but we’ve run into each other a few times over the years and even though I sounded a little angry on Selling Sunset, it’s always cordial." This isn't the first high profile romance Chrishell has had as she opened up about her divorce from Justin Hartley and her relationship with professional dancer Keo Motsepe, not to mention her most recent with Oppenheim Group co-founder Jason Oppenheim. Matthew on the other hand isn't shy of dating famous faces, being linked to Kelly Brook, Kristen Bell, Olivia Munn and former Glee co-star Lea Michele.