C'mon now, if she's understanding enough to move to Northern Canada so you can join the last first world military formation using Lee Enfields, she might well tolerate a little polygamy too. Seems to a work for a lot of LDS folks on both sides of the border.
A couple of times I've been in a situation where I was assumed to be some kind of polygamist: several women and a bunch of kids with us who could have been mine. It was mighty interesting to see the effect of this appearance on the women we encountered I can tell you! Not what you'd expect at all.