Darker Associations Surface
Stanza five echoes the opening's rejection of stereotypical Valentine's gifts - "not a cute card or a kissogram" - before insisting again "I give you an onion." The full stop creates a pause, as if the speaker is waiting for acceptance of their unconventional gift.
The phrase "its fierce kiss will stay on your lips" cleverly plays on the lingering taste of onion, comparing it to how some relationships leave a strong, unpleasant aftertaste that's difficult to forget.
Here's where things get properly uncomfortable: the word "possessive" signals jealousy, control, and insecurity creeping into the relationship. Whilst "faithful" sounds positive, when paired with "possessive," it becomes something much more sinister.
Key Point: Duffy uses sensory imagery (taste, smell) throughout to make the abstract concept of love feel physically real and sometimes unpleasant.
The contrast between positive and negative aspects of love becomes starker as the poem progresses, showing how relationships can transform from tender to toxic.