"Joe and Blanda have mutually decided to part ways," Jonas' rep tells Us. "The split was amicable and the two remain friends, with great respect for one another."
The former Disney star and Eggenschwiler, a graphic designer and model, started dating in November 2012 after being introduced through a mutual friend. In the following months, the Swiss-born beauty and her beau stepped out frequently together at parties and various Hollywood events.
The pair last attended the Cadillac & Refinery29 party together in Hollywood on Jun. 19, where an observer told Us that there appeared to be tension between the two. "He posed for photos by himself and then stormed inside," the insider said of the singer.
Their relationship also had its high moments. In January, the pair traveled to Hawaii together with his younger brother Nick Jonas and his girlfriend Olivia Culpo after attending a pal's destination wedding.
In May, they went to Nylon's music issue party, where an onlooker noted: "You can tell Joe and Blanda are happy together," adding that the couple seemed "to get along well" and were "light hearted" around each other.
Eggenschwiler, 29, is the latest lady to be added to Jonas' list of exes, which includes Taylor Swift, Camilla Belle, Demi Lovato, and his pal Ashley Greene. In an extensive, tell-all interview with New York magazine last December, the middle Jonas brother, 24, reflected on his former flames—along with his sexual history.
"I did other stuff before then, but I was sexually active at 20," Jonas revealed. "I'm glad I waited for the right person, because you look back and you go, 'That girl was bats—t crazy. I'm glad I didn't go there.'"
Jonas—who was with Eggenschwiler at the time the interview was conducted—told the mag that he was happy with the relationship. "Now I'm with someone I really care about," he said. "We get each other."