What is the St. Valentine song by Ophelia about? What does the St Valentine song suggest about Ophelia and Hamlet’s relationship before story began?

The St. Valentine's song by Ophelia is about the fraud that Hamlet gave her.

The song suggests that the relationship between Ophelia and Hamlet was not just of lovers but that they have been together in a bed. Hamlet promised Ophelia of marriage but did not fulfill his promise.

Explanation:

Hamlet is a play written by William Shakespeare.

In Act 4, Scene 5, Ophelia turns mad after the demise of her father. When Queen Gertrude pays a visit to her, she hysterically begins singing songs. One of the songs was the St. Valentine song. In this song, she gives details of her relationship with Hamlet. She talks about the betrayal done by Hamlet to her. She talks about how Hamlet wooed her to bed and promised to marry her, but stepped back from his promise.