What is oh my dollar valentines event in thirteen reasons why?

In "Thirteen Reasons Why," the "Oh My Dollar" Valentine's event is a school fundraiser where students can send anonymous notes and gifts to their peers for Valentine's Day. The event highlights the social dynamics and pressures of high school, as characters navigate feelings of love, friendship, and rejection. It serves as a backdrop for key developments in the storyline, illustrating the emotional struggles faced by the characters.