You give me tea. That's big of you ... And, in the case of this poem, it's love. It's a love poem. I think that's hinted at in the first line with the use of that word 'dear'.
Duffy uses the metaphor of an onion to describe the complexity of love in her poem 'Valentine'. "Not a red rose or a satin heart. I give you an onion." On the face of it, Carol Ann Duffy’s ...