Jack Antonoff showed off why he's such a hit with girlfriend, Lena Dunham, by FaceTiming her and eating during the MTV VMA's.

Lena tweeted, "my boyfriend just casually eating a banana at the VMAs is a good reminder why we've been at it half a decade, he's a true weirdo."

Lena tweeted that with true adoration as her boyfriend snacked on both a sandwich and a banana. According to the New York Post's Page Six, he likely got the food from the backstage green room.

Jack likely worked up an appetite after performing with his band, Bleachers, at the pre-show.