Wait - you're not her husband, and even if you were, you have no right to demand to know how she voted. The whole point of the secret franchise is that no one has the right to know.
She was right to tell you to buzz off.
I can honestly say I’ve never heard such poppycock.
I can’t imagine being unwilling to tell someone you’re in a serious relationship with who you voted for for President of the United States.
What are you ashamed of or afraid of? I don’t get it.
Anyway, to each his own. If this guy’s GF has your view of things, I’d say he needs to run in the other direction as fast as possible.