Romantic Nicknames / Pet Names:
Nicknames for Partners (either sex):
Other Half / Better Half
A common slang way to refer to your partner in a long-term relationship is as your "other half" or "better half". It makes the assumption that you two are a solid, long-lasting unit, and that you are now both ´halves of that whole´.
Nicknames for Partners (either sex) >
Romantic Nicknames / Pet Names >