Looks like Taylor Swift will have some fresh material for her next album! The pop star, 22, and beau Conor Kennedy, 18, are over, sources confirm to PEOPLE. The pair, who enjoyed a whirlwind

summer romance frolicking through Hyannis Port, Mass., showing several public displays of affection, split a while ago. “His friends have said it’s over,” says a source at his school, the

Deerfield Academy, adding, “I have the feeling she ended it.” It’s a bummer since Swift even got the stamp of approval from Conor’s grandma, Ethel Kennedy, who called the starlet,

“spectacular.” In August, a source told PEOPLE Swift was “swept off her feet” by her then-boyfriend. But Swift’s busy schedule could have made things difficult. She’s currently promoting her