Camilla Belle and Joe Jonas Camilla Belle and Joe Jonas

Attention, tweens: A Jonas brother is back on the market.

Middle bro Joe Jonas and Camilla Belle have broken up, the actress' rep tells

"Yes, it's true, they have broken up. There is no third party involved and they care deeply about each other and will remain friends," Brad Cafarelli said.

See who else has split this year

News of the split may not totally shock JoBro fans. During Sunday's concert in Detroit, Jonas supposedly teared up (watch and judge for yourself) and changed a lyric in the song "Much Better" from "now I see everything I'd ever need is the girl in front of me" to "girls in front of me," suggesting he has moved on.

Watch the performance — and listen closely — now

Jonas, 19, and Belle, 22, met on the set of the Jonas Brothers' video for "Lovebug" last year and started dating shortly after.