Demi Lovato and Joe Jonas called it quits this week–but their summer tour must go on . . . and so will Demi’s love life. The Disney actress has allegedly found a shoulder to cry on—and it belongs to thirty-year-old Wilmer Valderrama. Just yesterday, I questioned whether anyone still cared about the formerThat Seventies Show star, and now it turns out that seventeen-year-old...