If im married and i use console command to marry another, will i have 2 spouses or will the last one be replaced?

I don't really wanna start all over again to marry Olfina

You can't marry more than one at a time. I'm sure others have tried. It seems strange for such a lore that is dictated by war.

If you want to be married to someone specifically, then by all means marry then via console.

But as Ji Soo has said, I'm pretty sure it will replace who you are currently married to.