But what else do you call it though? Boyfriend seems a bit adolescent when you get to a certain age, companion sounds like you're going out with Val Doonican, other half is a popular one and I don't mind that (sorry Saz!), significant other is too long.
I don't see what's wrong with other half. It sounds a bit naff but is actually kind of romantic without being pretentious.
Other Half......yep.......two halves make a whole..........I like it!
Let's make that our winner and force other people to like it against their will just for kicks
I've just been thinking about 'significant other'. That sounds like you have other others who you are messing around with but aren't significant