Lojban Valentine
This Lojban Reference Grammar example sounds pretty romantic:
mi ce do girzu
.i lu'o ri gunma
.i vu'i ri porsi
In English:
The set of you and me is a set.
The mass of you and me is a mass.
The sequence of you and me is a sequence.
(Lojban Reference Grammar, example 10.9)
Awwwww...