Joe Jonas smiled while out on a coffee run in NYC on Monday, but it turns out that the singer has recently undergone a big change in his personal life — he and girlfriend Ashley Greene have apparently split! News of their breakup comes one day after the release of Joe's Details magazine interview, in which he talked about his great relationship with Ashley and said, "I think what works about it is she really puts my feelings first. She understands my busy schedule. She'll fly out to my shows — she's been to places in South America that I can't even pronounce." Ashley hasn't been slacking with her own travel schedule, though, as she jets around North America finishing up Breaking Dawn. The couple had been dating for just around eight months after getting together last Summer, and they managed to pack plenty of PDA into the relatively short amount of time.