Stine and the Boys (1969)

Both inside and outside the young Stine, there is a break-up: Her relationship with her boyfriend Jens alternates between big quarrels and loving reconciliations. Her parents try to be liberal, but are still skeptical when Stine and Jens move in together. And the jealousy moves with it, just as Stine's impulsiveness and urge for new acquaintances do.