Accroche-cœur(1987)

Leo just broke up with his wife, and the handsome architect wants to enjoy his sadness at this event in solitude. Unfortunately for him, his young girlfriend, an unperceptive sprite, is too much in love with him to let him out of her sight. He is on his way to a resort in the south of France, and despite his persistent, obvious and repeated attempts to get her to leave him alone, she sticks to him like glue.