thoughts on terminology regarding marriage equality?

[Reio88]

4. A "what about" marriage equality question?

Perhaps this should be on another thread.
Marriage equality is just common sense to me. But as a pagan the whole church thing is out.
On to my real point.
What if a bi male would like to marry both his mates - one male , one female?
or a bi female to wed 1 woman, 1 man
Now we have an entirely different issue.

We now have 3 people married and divorce, separation of just one or both. I see a legal complexity
beyond reason. Both for the system and possible employer benefits. Not to mention children or adoption.

It would seem the easiest answer is 2 people marry an then cheat with the 3rd.
But that leaves 1 person not part of the union.

Personally it's always been easy to say 2 people are married. Two is easy and still conforms to the
standard accepted norm of marriage of one+one.