People.com Celebrity 5 Reasons We're Mourning Michelle Williams & Jason Segel's Split From their low-key love to fun times with Matilda, this celebrity couple seemed made for each other By Kiran Hefa Published on February 27, 2013 05:00 PM Share Tweet Pin Email 01 of 05 1. THEY HAD THE CUTEST HOOKUP STORY FameFlynet What are girlfriends for? In 2012, Michelle Williams seemingly met her match when longtime friend Busy Philipps introduced the actress to her Freaks and Geeks costar Jason Segel. "I've never seen her happier," a source told PEOPLE of the budding romance in March, and nearly a year later, Segel joined the pair on vacation in Mexico. 02 of 05 2. HE TOOK TO DADDY DUTY WITH EASE Splash News Online Besides Williams, the star's 7-year-old daughter, Matilda, seemed equally smitten with the How I Met Your Mother actor, who frequently accompanied his ladies on excursions around New York City, such as a visit to the Bronx Zoo and a Jersey Boys performance on Broadway. Segel even tended to Matilda solo in July 2012 when Williams was away for work. 03 of 05 3. SHE FINALLY SEEMED HAPPY WENN Three years after her last romance – with director Spike Jonze – and four years after the death of Heath Ledger, Williams appeared ready to commit once again, when in October 2012, a sourced confirmed Segel had moved into her Brooklyn, N.Y., home. "It's like the first girl he's ever been this way with," another source told PEOPLE. 04 of 05 4. THEY WERE THE OPPOSITE OF KIMYE Humberto Carreno/Startraks No P.D.A.-laden magazine covers for these two! Shunning red carpet events in favor of low-key outings near home and family-friendly activities with Matilda, the couple kept their relationship private, rarely speaking about each other to the press or overtly flaunting their affection in public. 05 of 05 5. THE WORLD WAS ROOTING FOR THEM AKM-GSI Both beloved by fans in their own right, Williams and Segel became even more likable as a twosome, something the actress herself acknowledged in InStyle's March 2013 issue. "If people are happy about it that makes me feel good," she told the mag. But the dream team came to an end only weeks later, when word leaked that Williams and Segel had split.