Cupid notes the choreography of that guy song was horrible.
Both genders declare war against each other as a result of the lack of love.
Cupid states to Timmy it is his wish that caused this whole mess and caused him to slowly shrivel up until he is nothing.
...that Tootie is heartbroken because of Timmy's refusal on being her valentine.
"I'm totally gonna kick myself for this, but..."
Timmy hits himself with the love arrow.
"...will you be my Valentine?"