The two have since made up, following a 10-month separation.
Jennie Garth found out her husband, Dave Abrams, had filed for divorce when everyone else did -- once the news broke online.
The two tied the knot in 2015 -- within months of meeting each other in 2014 -- with Jennie admitting the rushed relationship "hurt us" in the long tun. "We rushed it too much, and we had individual things we needed to work out," she explained. "Maybe it was a mistake [to move so fast] and we've all had to learn and grow from that."
According to Garth, when the going got tough and "everything wasn't shiny and pretty and fun" like it was when they first started dating, Abrams "didn't know how to handle it as much." That led to them parting ways "completely."
When Abrams then filed for divorce, Garth -- who was previously married to musician Daniel Clark and "Twilight" star Peter Facinelli -- said it "really devastated me."
"I was in a really bad mindset for a good five or six months. It was just embarrassing," she explained. Once it started to sink in for her that it was really over between them, however, they "started hanging out" together again.
After their "separate learning," their shared growth "was kind of the fiber that connected us back together" she said. Though Garth admitted it's still a process for them now, the two are "constantly wanting to better the relationship."
On the new "BH90210," the TV version of Garth -- the actors all play caricatures of themselves -- is also blindsided by her third husband filing for divorce.
"That was a big deal for me," she explained. "So we used it in the show, because why not use the things that hurt us most and then take the power out of them and make them funny."
"BH90210" airs Wednesdays on Fox.