While Ophelia seemed scared of Hamlet with his new 'insane behavior', Polonius seemed to attribute this change due to Hamlet's way of reacting to his rejected love for Ophelia.
Explanation:
Act II scene I of the play "Hamlet" by William Shakespeare shows the scene where Ophelia tells her father Polonius about the changed behavior of Hamlet. She also admitted to being scared of him after his 'insane' behavior.
Ophelia described how Hamlet "<em>took me by the wrist and held me hard</em>" and stared at her face so hard and long that she got scared of his changed demeanor. Polonius, on the other hand, belies it to be the case of a "<em>very ecstasy of love, .... that leads the will to desperate undertakings As oft as any passion under heaven That does afflict our natures</em>". He told her of his suspicions of this new behavior to be the cause of a heartbroken man, whose love have been rejected.