Place this clip at the very end of the edit, after the key line or reveal it is answering. Follow it with a soft laugh track if the scene is played for comedy, or let it close the sequence alone for a straight dedication without anything after it.
About this sound
This is a 22-second excerpt of the love song Tonight You Belong to Me, built around gentle singing over a soft, old-fashioned melody. It gives a listener a sweet and dreamy feeling, tender and a little nostalgic, like a quiet serenade meant for one person in a calm, intimate moment together.