The Vanderpump Rules costars began seeing each casually other after meeting in 2010, Katie said in an April 2022 We Met at Acme podcast episode. When their romantic feelings became stronger, Katie asked Tom to be her boyfriend.
"We both didn't want a relationship, but we caught feelings," she said. "So I felt like we had to establish some boundaries so the other one didn't get hurt."
The couple next moved in together, and an ultimatum from Katie led to them getting married in 2019.
"Then I gave him an ultimatum, the famous ultimatum," Katie said. "I felt like he was always very commitment-phobic in ways, and I was wanting to take natural progressions... He was being naughty, and so I was like, 'You know, it's time for you to make the real commitment.'"
On March 15, Katie and Tom each posted statements on their Instagram accounts announcing their separation. Tom made a reference to this being Katie's choice, as he wrote he "fully respect[s] Katie's decision."
"Of course, now I’m the one that’s asked for a divorce. So it’s funny how life works," Katie said in the interview.