One example is, “catbird” and “cat” in line one and “loathes” and “loved” in the last two lines of the ultimate stanza. "undressing" - interpreted each being a reference for the sexual facet of their relationship, and also The expansion of their emotional bond which the peeling away of garments https://valentine-poem-genius71358.isblog.net/valentine-poem-for-dummies-49583845