Better word for the stable hitch -No more "My Partner"

My better half /thread

Bit more complex here given there is three of us. Vast majority of the time I simply use their actual first names. But in most conversations where a word was required "partner" and "partners" has always sufficed. When I am a bit more tongue in cheek and philosophising I would call them my fellow travelers. Mainly based on my life motto about the meaning of live being that "The Journey is the Destination". Occasionally based on Dr. Seuss I would call them "Thing 1 and Thing 2" because of "The Cat in the Hat".

Would have once considered moving from "better half" to "better thirds" but with a mild Irish accent it sounded too often like I was calling them turds. So that was abandoned fairly quickly. If I went with "ball and chain" I would have to work out which one was the ball and which the chain.

They would both refer to me in conversation as "himself" and each other as "herself". Is that more an Irish thing than used in UK or US? Not sure.

Other than that - nothing useful occurs to me.

TBH "boyfriend" sounds a bit fukcin' stupid when you're 45. Grand if you're a teenager I suppose, at the end of the day it's only a word anyway, but I see nothing wrong with "partner" if referring to adults.