love sponge
A love sponge is one who is completely in awe of their partner, catering to their every wish. (S)He loves to lie in their partner's arms like a pile of goo, soaking up all the love. When squeezed, the love starts to pour out of them in the form of overly romantic gestures, often accompanied by an excited squeal.
Friend 1: "That guy, Carlyle, took his girl on an all-day date, gave her wine, chocolates, a picnic, wrote her a sonnet and performed it for her. To finish off the date, they watched Netflix while he rubbed her feet."

Friend 2: "Carlyle is the epitome of a love sponge."