After two years together, Amy Poehler and Nick Kroll have split, sources reveal exclusively in the new issue of Us Weekly Credit: Monica Schipper/Getty Images

The funny business is over for Amy Poehler and Nick Kroll. The couple of two years have split, sources reveal exclusively in the new issue of Us Weekly.

“Unfortunately, they just couldn’t make the relationship work with their schedules,” says one insider close to the Parks and Recreation actress, 44, and the Kroll Show star, 37.

Upcoming projects constantly came between Kroll and the mom of two (she shares Archie, 6, and Abel, 5, with ex-husband Will Arnett). “They really tried, but it just wasn’t realistic anymore,” adds the source. “They were spending more time apart than together.”

Kroll is the first man Poehler has had a relationship with since she and Arnett, 45, split in September 2012 after nine years of marriage. "She wanted a comedian who 'gets' her," a source explained to Us Weekly in May 2013, when Us exclusively broke the news that Kroll and Poehler were dating.

As comedian Chelsea Peretti shared in an Instagram photo, Kroll attended a pre-Emmys bash on Sept. 18 in L.A. Two days later, Poehler attended the awards show with pal Brooke Posch, her Paper Kite Productions partner.

Poehler opened up about their relationship in her 2014 memoir, Yes Please. “I have a boyfriend who knows how to settle me. He puts his hand on my chest and tells me boring stories," she wrote. "On one of our first nights together, I woke up apologizing for my snoring and he pulled out two earplugs he had worn to bed so he could hear what I was saying. It was one of the most romantic gestures I have ever seen.”

Sign up now for the Us Weekly newsletter to get breaking celebrity news, hot pics, and more delivered straight to your inbox!