The "Sisterhood of the Travelling Pants" alum met Kartheiser when she guest starred on "Mad Men"'s fifth season. Bledel's onscreen counterpart explored an illicit affair with Kartheiser's Pete Campbell on the show. The pair, according to Kartheiser, got romantically involved two months after filming wrapped up. In October 2012, the rumoured couple went public with their budding relationship. Nearly a year into their romance, Kartheiser popped the question to Bledel, who said yes. The "Titans" alum confirmed he was engaged in March 2013 when speaking with Us Weekly at the "Mad Men" season six Hollywood premiere. "I'm a very lucky man. I keep saying 'girlfriend.' And then I'm like, 'I mean, my fiancée,' " he shared.
The duo tied the knot in Ojai, CA, in an intimate ceremony in June 2014. Since the beginning of their relationship, both have remained notoriously tight-lipped about their life together, rarely making joint public appearances or talking about each other on record. Kartheiser eventually opened up about keeping their personal lives private in a rare chat with Vulture in 2014.
"It's something I realised about the most important things in my life. If I share them with the world and I open that door to their fuming anger that they need to get out or their adoration that they want to flaunt, it lessens it. It cheapens it; it weakens it. And it's magical, love, and all of that is profoundly spiritual, and it just doesn't feel right," he explained.
The married couple secretly welcomed their first child together, a son, in the fall of 2015, which only was revealed when Scott Patterson, the actor who played Luke on "Gilmore Girls," unintentionally shared the exciting news with Glamour in May 2016. The twosome had finally made their red carpet debut a few months prior in January 2016 as they attended the Screen Actors Guild Awards together.
On Aug. 17, 2022, People confirmed that the couple are officially splitting up after eight years of marriage, with Kartheiser filing for divorce from Bledel at the Putnam County Supreme Court in New York on Aug. 10. Neither party has yet to publicly discuss their split.