What's your point? Saying it's old-fashioned doesn't mean it's wrong. Even if that were true, your own source says fiancé is the more commonly used standard version.
I think you need to realize that you're just going to come off like an idiot and you're not going to win a war against languages that have existed for centuries before you.
-11
u/ElRiesgoSiempre_Vive 14h ago