Did someone just get a little bit lonelier?

Gossip Girl star Penn Badgley and Zoe Kravitz have broken up after dating for almost two years, according to Us Weekly.

Penn, 26, and Zoe, 24, were first spotted together in summer 2011 and had been sharing a New York City apartment together. 

"It just wasn't working," says a source. "It really did end on good terms, though." 

"It is all good between them," the source maintains. "It wasn't a sad breakup." Well, we're sad about it, even if they aren't!

So what did happen? It sounds like another case of their schedules getting in the way of love.

"They are at two different stages in their careers," an insider reveals. "They just didn't have time for each other."

Sure enough, they've both had busy acting careers of late. Penn plays rocker Jeff Buckley in the biopic Greetings from Tim Buckley, which has been hitting the festival circuit, and he recently finished filmed the movie Parts Per Billion opposite Josh Hartnett and Rosario Dawson.

Meanwhile, Zoe  who is the daughter of musician Lenny Kravitz and Cosby Show actress Lisa Bonet  recently appeared in After Earth and can be soon seen in such high-profile films as Mad Max: Fury Road and the currently filming Divergent.

Penn was previously part of an adorable Gossip Girl showmance with Blake Lively, while Zoe had previously been linked to actors Michael Fassbender (way to go, Zoe!) and Ben Foster. 

We're wishing Penn and Zoe all the best, and we're as disappointed as you are that these two are no longer going to go each other's way.

Source: Us Weekly