Sparks flew when Jonah Hill and 22-year-old musician Alana Haim met at a spring party thrown by mutual friend Adam Levine.
“They hit it off and started dating almost immediately,” Alana’s friend tells Star.
So why didn’t they last the summer? “Alana started touring, and Jonah got jealous and insecure,” the pal explains. “One time, Jonah called her in the middle of the night and accused her of cheating. It got to be too much — and she finally ended the relationship.”