Interludes were short comedic plays that introduced real characters who were more fully developed than characters in allegories. Theses short plays helped to lighten the mood in the midst of serious, instructive plays. They were simple, and were used for the diversion of guests at a banquet, or between serious plays, for relaxation of the audience.
The artist might be trying to convey that the subject of the song has been in love with the singer for a while now but the subject is too shy to admit it. Hope this helps! :)
